diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/.gitignore" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/.gitignore"
new file mode 100644
index 0000000000000000000000000000000000000000..35410cacdc5e87f985c93a96520f5e11a5c822e4
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/.gitignore"	
@@ -0,0 +1,8 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/artifacts/Day20230606_war_exploded.xml" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/artifacts/Day20230606_war_exploded.xml"
new file mode 100644
index 0000000000000000000000000000000000000000..85c9871b462f98a13b3e73c58225d5a4f95b511d
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/artifacts/Day20230606_war_exploded.xml"	
@@ -0,0 +1,13 @@
+<component name="ArtifactManager">
+  <artifact type="exploded-war" name="Day20230606:war exploded">
+    <output-path>$PROJECT_DIR$/out/artifacts/Day20230606_war_exploded</output-path>
+    <root id="root">
+      <element id="javaee-facet-resources" facet="Day20230606/web/Web" />
+      <element id="directory" name="WEB-INF">
+        <element id="directory" name="classes">
+          <element id="module-output" name="Day20230606" />
+        </element>
+      </element>
+    </root>
+  </artifact>
+</component>
\ No newline at end of file
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/dataSources.xml" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/dataSources.xml"
new file mode 100644
index 0000000000000000000000000000000000000000..d17f22cd460912e82feb4563b55774e9fe24dc2c
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/dataSources.xml"	
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="@localhost" uuid="866a585e-ac49-4a39-96aa-fc1cd5482dc8">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://localhost:3306</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+  </component>
+</project>
\ No newline at end of file
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/libraries/lib.xml" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/libraries/lib.xml"
new file mode 100644
index 0000000000000000000000000000000000000000..23106033b23a0c8e5ae95ddf611aebd76dc3d72f
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/libraries/lib.xml"	
@@ -0,0 +1,10 @@
+<component name="libraryTable">
+  <library name="lib">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/web/WEB-INF/lib" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+    <jarDirectory url="file://$PROJECT_DIR$/web/WEB-INF/lib" recursive="false" />
+  </library>
+</component>
\ No newline at end of file
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/misc.xml" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/misc.xml"
new file mode 100644
index 0000000000000000000000000000000000000000..05483570e041eb648703359441d61bf9a5feeb13
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/misc.xml"	
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/modules.xml" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/modules.xml"
new file mode 100644
index 0000000000000000000000000000000000000000..7660e7bb5b5bff71c188506975f5117bdae6f3d8
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/modules.xml"	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Day20230606.iml" filepath="$PROJECT_DIR$/Day20230606.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/webContexts.xml" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/webContexts.xml"
new file mode 100644
index 0000000000000000000000000000000000000000..322627a55ca2a5019b36c0a7768663aa0a42557c
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/.idea/webContexts.xml"	
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="WebContextManager">
+    <option name="state">
+      <map>
+        <entry key="file://$PROJECT_DIR$/web/WEB-INF/list.jsp" value="file://$PROJECT_DIR$/web/WEB-INF" />
+      </map>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/Day20230606.iml" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/Day20230606.iml"
new file mode 100644
index 0000000000000000000000000000000000000000..bc73df7611ec684b1bbe278ef7410a3c374a9849
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/Day20230606.iml"	
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="web" name="Web">
+      <configuration>
+        <descriptors>
+          <deploymentDescriptor name="web.xml" url="file://$MODULE_DIR$/web/WEB-INF/web.xml" />
+        </descriptors>
+        <webroots>
+          <root url="file://$MODULE_DIR$/web" relative="/" />
+        </webroots>
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="lib" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/add.jsp" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/add.jsp"
new file mode 100644
index 0000000000000000000000000000000000000000..b6e0b7b6278777302e4812e87e22d7e9399d4b17
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/add.jsp"	
@@ -0,0 +1,47 @@
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-06
+  Time: 19:35
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>学生考勤系统</title>
+</head>
+<body>
+
+<form action="/add" method="post">
+    <h1>学生考勤系统</h1>
+    <table border="1">
+        <tr>
+            <td>学生姓名</td>
+            <td>
+                <select name="sid" id="">
+                    <c:forEach items="${list}" var="stu">
+                        <option value="${stu.sid}">${stu.sname}</option>
+                    </c:forEach>
+                </select>
+            </td>
+        </tr>
+        <tr>
+            <td>考勤时间</td>
+            <td><input type="datetime-local" name="time"></td>
+        </tr>
+        <tr>
+            <td>考勤情况</td>
+            <td>
+                已到:<input type="radio" value="1" name="type">
+                迟到:<input type="radio" value="2" name="type">
+                旷课:<input type="radio" value="3" name="type">
+            </td>
+        </tr>
+        <tr>
+            <td colspan="2"><input type="submit" value="添加"></td>
+        </tr>
+    </table>
+    </form>
+</body>
+</html>
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/bean/Attence.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/bean/Attence.class"
new file mode 100644
index 0000000000000000000000000000000000000000..e57d105aa004954f27606cf68feae9d00fbf1920
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/bean/Attence.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/bean/Student.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/bean/Student.class"
new file mode 100644
index 0000000000000000000000000000000000000000..f19ef1fd922b1e8244eb21eb168a218e7e70d6c8
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/bean/Student.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/servlet/AddServlet.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/servlet/AddServlet.class"
new file mode 100644
index 0000000000000000000000000000000000000000..d3ada399484161cfb4a6b92772d1170144684c1d
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/servlet/AddServlet.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/servlet/ListServlet.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/servlet/ListServlet.class"
new file mode 100644
index 0000000000000000000000000000000000000000..1c15d4338b986de4461f29235c2f9fd2ddae4a00
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/servlet/ListServlet.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/utils/DBUtil.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/utils/DBUtil.class"
new file mode 100644
index 0000000000000000000000000000000000000000..e9234b0cc16f767adfcdc6a0395dc023b084a8f7
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/classes/utils/DBUtil.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/jstl.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/jstl.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..a02abecc8b888f09e4d1f9e4c9790dc482426d4f
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/jstl.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/mysql-connector-java-5.1.48.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/mysql-connector-java-5.1.48.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..bd1c4bbc218ccff3c5a0dc9a09d248c54c577fd8
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/mysql-connector-java-5.1.48.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/servlet-api.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/servlet-api.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..daf690af39e115e15974b23843a3987eb3089e18
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/servlet-api.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/standard.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/standard.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..bc528acb949096eeb2e3048de1ff5b9ab12a66c5
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/lib/standard.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/list.jsp" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/list.jsp"
new file mode 100644
index 0000000000000000000000000000000000000000..a900c31e59aaaa464fcd17e61724bf7eef43d3df
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/list.jsp"	
@@ -0,0 +1,40 @@
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-06
+  Time: 11:35
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <a href="/add">添加</a>
+    <title>Title</title>
+</head>
+<body>
+    <table border="1">
+        <tr>
+            <th>考勤编号</th>
+            <th>学生编号</th>
+            <th>学生姓名</th>
+            <th>出勤时间</th>
+            <th>出勤情况</th>
+        </tr>
+
+        <c:forEach items="${list}" var="stu">
+            <tr>
+                <td>${stu.type}</td>
+                <td>${stu.aid}</td>
+                <td>${stu.sname}</td>
+                <td>${stu.time}</td>
+                <td>
+                <c:if test="${stu.sid==1}" >已到</c:if>
+                <c:if test="${stu.sid==2}" >迟到</c:if>
+                <c:if test="${stu.sid==3}" >旷课</c:if>
+                </td>
+            </tr>
+        </c:forEach>
+    </table>
+</body>
+</html>
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/msg.jsp" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/msg.jsp"
new file mode 100644
index 0000000000000000000000000000000000000000..045d72c7eade51cb919ab8b36ec6c3432d1122db
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/artifacts/Day20230606_war_exploded/WEB-INF/msg.jsp"	
@@ -0,0 +1,18 @@
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-06
+  Time: 20:13
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>提示信息</title>
+</head>
+<body>
+    <h1>${msg}</h1>
+    <hr>
+    <a href="/list">返回列表</a>
+</body>
+</html>
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/bean/Attence.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/bean/Attence.class"
new file mode 100644
index 0000000000000000000000000000000000000000..e57d105aa004954f27606cf68feae9d00fbf1920
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/bean/Attence.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/bean/Student.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/bean/Student.class"
new file mode 100644
index 0000000000000000000000000000000000000000..f19ef1fd922b1e8244eb21eb168a218e7e70d6c8
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/bean/Student.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/servlet/AddServlet.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/servlet/AddServlet.class"
new file mode 100644
index 0000000000000000000000000000000000000000..d3ada399484161cfb4a6b92772d1170144684c1d
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/servlet/AddServlet.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/servlet/ListServlet.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/servlet/ListServlet.class"
new file mode 100644
index 0000000000000000000000000000000000000000..1c15d4338b986de4461f29235c2f9fd2ddae4a00
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/servlet/ListServlet.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/utils/DBUtil.class" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/utils/DBUtil.class"
new file mode 100644
index 0000000000000000000000000000000000000000..e9234b0cc16f767adfcdc6a0395dc023b084a8f7
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/out/production/Day20230606/utils/DBUtil.class" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/bean/Attence.java" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/bean/Attence.java"
new file mode 100644
index 0000000000000000000000000000000000000000..b6c289120c7dc095104ac6a7de9491aafb304684
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/bean/Attence.java"	
@@ -0,0 +1,71 @@
+package bean;
+
+public class Attence {
+    private int aid;
+    private String time;
+    private int type;
+    private int sid;
+    private String sname;
+
+    public Attence() {
+    }
+
+    public Attence(int aid, String time, int type, int sid, String sname) {
+        this.aid = aid;
+        this.time = time;
+        this.type = type;
+        this.sid = sid;
+        this.sname = sname;
+    }
+
+    public int getAid() {
+        return aid;
+    }
+
+    public void setAid(int aid) {
+        this.aid = aid;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+
+    public int getType() {
+        return type;
+    }
+
+    public void setType(int type) {
+        this.type = type;
+    }
+
+    public int getSid() {
+        return sid;
+    }
+
+    public void setSid(int sid) {
+        this.sid = sid;
+    }
+
+    public String getSname() {
+        return sname;
+    }
+
+    public void setSname(String sname) {
+        this.sname = sname;
+    }
+
+    @Override
+    public String toString() {
+        return "Attence{" +
+                "aid=" + aid +
+                ", time='" + time + '\'' +
+                ", type=" + type +
+                ", sid=" + sid +
+                ", sname='" + sname + '\'' +
+                '}';
+    }
+}
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/bean/Student.java" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/bean/Student.java"
new file mode 100644
index 0000000000000000000000000000000000000000..4fb66b71faebf96e2be706872a9624dbcdd2ed31
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/bean/Student.java"	
@@ -0,0 +1,38 @@
+package bean;
+
+public class Student {
+    private int sid;
+    private String sname;
+
+    public Student() {
+    }
+
+    public Student(int sid, String sname) {
+        this.sid = sid;
+        this.sname = sname;
+    }
+
+    public int getSid() {
+        return sid;
+    }
+
+    public void setSid(int sid) {
+        this.sid = sid;
+    }
+
+    public String getSname() {
+        return sname;
+    }
+
+    public void setSname(String sname) {
+        this.sname = sname;
+    }
+
+    @Override
+    public String toString() {
+        return "Student{" +
+                "sid=" + sid +
+                ", sname='" + sname + '\'' +
+                '}';
+    }
+}
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/servlet/AddServlet.java" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/servlet/AddServlet.java"
new file mode 100644
index 0000000000000000000000000000000000000000..5ef7c109adce4f5ac646e252782318d6367a28e5
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/servlet/AddServlet.java"	
@@ -0,0 +1,56 @@
+package servlet;
+
+import bean.Attence;
+import bean.Student;
+import utils.DBUtil;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+@WebServlet("/add")
+public class AddServlet extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        ArrayList<Student> list = new ArrayList<>();
+        request.setCharacterEncoding("utf-8");
+        String sql = "select * from student";
+        ResultSet rs = DBUtil.query(sql);
+        try {
+            while (rs.next()){
+                int sid = rs.getInt("sid");
+                String sname = rs.getString("sname");
+                Student stu = new Student(sid, sname);
+                list.add(stu);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        request.setAttribute("list",list);
+        request.getRequestDispatcher("/WEB-INF/add.jsp").forward(request,response);
+
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        request.setCharacterEncoding("utf-8");
+
+        String sid = request.getParameter("sid");
+        String time = request.getParameter("time");
+        String type = request.getParameter("type");
+
+        String sql = "insert into attence values(?,?,?,?)";
+        int i = DBUtil.update(sql, null, time, type, sid);
+
+        if(i>0){
+            request.setAttribute("msg","添加成功");
+            request.getRequestDispatcher("/WEB-INF/msg.jsp").forward(request,response);
+        }else{
+            request.setAttribute("msg","添加失败");
+        }
+    }
+}
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/servlet/ListServlet.java" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/servlet/ListServlet.java"
new file mode 100644
index 0000000000000000000000000000000000000000..c7d098692861c280d1ef041838bbb07f00ef0a40
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/servlet/ListServlet.java"	
@@ -0,0 +1,46 @@
+package servlet;
+
+import bean.Attence;
+import utils.DBUtil;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+@WebServlet("/list")
+public class ListServlet extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        ArrayList<Attence> list = new ArrayList<>();
+        //处理乱码问题
+        request.setCharacterEncoding("utf-8");
+        //编写sql语句
+        String sql ="select * from attence a ,student s where a.sid=s.sid";
+        ResultSet rs = DBUtil.query(sql);
+        try {
+            while (rs.next()){
+                int aid = rs.getInt("aid");
+                String time = rs.getString("time");
+                int type = rs.getInt("type");
+                int sid = rs.getInt("sid");
+                String sname = rs.getString("sname");
+                Attence stu = new Attence(aid, time, type, sid, sname);
+                list.add(stu);
+            }
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+        request.setAttribute("list",list);
+        request.getRequestDispatcher("/WEB-INF/list.jsp").forward(request,response);
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+
+    }
+}
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/utils/DBUtil.java" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/utils/DBUtil.java"
new file mode 100644
index 0000000000000000000000000000000000000000..666c3acfcaabe28cebadb3f4e303189661152ace
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/src/utils/DBUtil.java"	
@@ -0,0 +1,70 @@
+package utils;
+
+import java.sql.*;
+
+public class DBUtil {
+    //1.定义数据库地址，用户名，密码，utf8编码
+   public static final String URL="jdbc:mysql:///attdb?useSSL=false&characterEncoding=utf8";
+   public static final String USER="root";
+   public static final String PSW="root";
+    //2.注册驱动
+    static {
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+        } catch (ClassNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+    }
+    //3.获取连接对象
+    public static Connection getConn() {
+        Connection conn;
+        try {
+            conn = DriverManager.getConnection(URL, USER, PSW);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+        return conn;
+    }
+
+    //4.通用的查询方法
+    public static ResultSet query(String sql,Object... keys){
+        //1.获取连接对象
+        Connection conn = getConn();
+        //2.获取执行sql语句的对象
+        ResultSet rs = null;
+        try {
+            PreparedStatement prs = conn.prepareStatement(sql);
+            //2.5遍历数组，将数据赋值给每个？
+            for (int i = 0; i < keys.length; i++) {
+                prs.setObject((i+1),keys[i]);
+            }
+            //3.得到并返回结果集
+            rs = prs.executeQuery();
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+
+        return rs;
+    }
+
+    //5.通用的update方法
+    public static int update(String sql,Object... keys){
+        //1.获取连接对象
+        Connection conn = getConn();
+        //2.获取执行sql语句的对象
+        int num=0;
+        try {
+            PreparedStatement prs = conn.prepareStatement(sql);
+            //2.5遍历数组，将数据赋值给每个？
+            for (int i = 0; i < keys.length; i++) {
+                prs.setObject((i+1),keys[i]);
+            }
+            //3.得到并返回结果集
+            num = prs.executeUpdate();
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+
+        return num;
+    }
+}
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/add.jsp" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/add.jsp"
new file mode 100644
index 0000000000000000000000000000000000000000..b6e0b7b6278777302e4812e87e22d7e9399d4b17
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/add.jsp"	
@@ -0,0 +1,47 @@
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-06
+  Time: 19:35
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>学生考勤系统</title>
+</head>
+<body>
+
+<form action="/add" method="post">
+    <h1>学生考勤系统</h1>
+    <table border="1">
+        <tr>
+            <td>学生姓名</td>
+            <td>
+                <select name="sid" id="">
+                    <c:forEach items="${list}" var="stu">
+                        <option value="${stu.sid}">${stu.sname}</option>
+                    </c:forEach>
+                </select>
+            </td>
+        </tr>
+        <tr>
+            <td>考勤时间</td>
+            <td><input type="datetime-local" name="time"></td>
+        </tr>
+        <tr>
+            <td>考勤情况</td>
+            <td>
+                已到:<input type="radio" value="1" name="type">
+                迟到:<input type="radio" value="2" name="type">
+                旷课:<input type="radio" value="3" name="type">
+            </td>
+        </tr>
+        <tr>
+            <td colspan="2"><input type="submit" value="添加"></td>
+        </tr>
+    </table>
+    </form>
+</body>
+</html>
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/jstl.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/jstl.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..a02abecc8b888f09e4d1f9e4c9790dc482426d4f
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/jstl.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/mysql-connector-java-5.1.48.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/mysql-connector-java-5.1.48.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..bd1c4bbc218ccff3c5a0dc9a09d248c54c577fd8
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/mysql-connector-java-5.1.48.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/servlet-api.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/servlet-api.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..daf690af39e115e15974b23843a3987eb3089e18
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/servlet-api.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/standard.jar" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/standard.jar"
new file mode 100644
index 0000000000000000000000000000000000000000..bc528acb949096eeb2e3048de1ff5b9ab12a66c5
Binary files /dev/null and "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/lib/standard.jar" differ
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/list.jsp" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/list.jsp"
new file mode 100644
index 0000000000000000000000000000000000000000..a900c31e59aaaa464fcd17e61724bf7eef43d3df
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/list.jsp"	
@@ -0,0 +1,40 @@
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-06
+  Time: 11:35
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <a href="/add">添加</a>
+    <title>Title</title>
+</head>
+<body>
+    <table border="1">
+        <tr>
+            <th>考勤编号</th>
+            <th>学生编号</th>
+            <th>学生姓名</th>
+            <th>出勤时间</th>
+            <th>出勤情况</th>
+        </tr>
+
+        <c:forEach items="${list}" var="stu">
+            <tr>
+                <td>${stu.type}</td>
+                <td>${stu.aid}</td>
+                <td>${stu.sname}</td>
+                <td>${stu.time}</td>
+                <td>
+                <c:if test="${stu.sid==1}" >已到</c:if>
+                <c:if test="${stu.sid==2}" >迟到</c:if>
+                <c:if test="${stu.sid==3}" >旷课</c:if>
+                </td>
+            </tr>
+        </c:forEach>
+    </table>
+</body>
+</html>
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/msg.jsp" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/msg.jsp"
new file mode 100644
index 0000000000000000000000000000000000000000..045d72c7eade51cb919ab8b36ec6c3432d1122db
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/Day20230606/web/WEB-INF/msg.jsp"	
@@ -0,0 +1,18 @@
+<%--
+  Created by IntelliJ IDEA.
+  User: Administrator
+  Date: 2023-06-06
+  Time: 20:13
+  To change this template use File | Settings | File Templates.
+--%>
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<html>
+<head>
+    <title>提示信息</title>
+</head>
+<body>
+    <h1>${msg}</h1>
+    <hr>
+    <a href="/list">返回列表</a>
+</body>
+</html>
diff --git "a/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/student.sql" "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/student.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..a49a0b8d714e470ad68581d51f4f511ed72a563a
--- /dev/null
+++ "b/04 \346\235\216\346\230\216\345\201\245/20230607 \350\200\203\345\213\244\347\263\273\347\273\237\347\273\203\344\271\240/student.sql"	
@@ -0,0 +1,29 @@
+create database AttDB charset utf8;
+use AttDB;
+
+create table Student(
+	sid	int primary key auto_increment,						#学号 主键,自动增长列
+	sname	varchar(20) unique not null							#学生姓名 唯一,非空
+);
+
+create table Attence (
+	aid	int primary key auto_increment,						#考勤编号 主键,自动增长列
+	time	varchar(20) not null,										#出勤时间 非空
+	type	int comment "1:已到；2:迟到；3旷课",		#出勤状况 1:已到；2:迟到；3旷课
+	sid	int,																			#学号 外键
+	foreign key(sid) references Student(sid)
+);
+
+insert into student values
+(null,"张三"),
+(null,"李四"),
+(null,"王五");
+
+insert into attence values
+(null,"2022-05-06 08:01:25",1,1),
+(null,"2022-05-06 08:01:25",2,1),
+(null,"2022-05-06 08:01:25",2,2),
+(null,"2022-05-06 08:01:25",3,2),
+(null,"2022-05-06 08:01:25",2,3);
+
+select * from student;
\ No newline at end of file