From b87186b711e8b74c646c4ba6d7886b74ff327abf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8C=83=E9=9B=A8=E6=9A=84?= <2322677577@qq.com>
Date: Tue, 24 May 2022 23:45:44 +0800
Subject: [PATCH] xsxx

---
 ...46\347\224\237\344\277\241\346\201\257.md" | 180 ++++++++++++++++++
 1 file changed, 180 insertions(+)
 create mode 100644 "\350\214\203\351\233\250\346\232\204/20220524-\345\255\246\347\224\237\344\277\241\346\201\257.md"
diff --git "a/\350\214\203\351\233\250\346\232\204/20220524-\345\255\246\347\224\237\344\277\241\346\201\257.md" "b/\350\214\203\351\233\250\346\232\204/20220524-\345\255\246\347\224\237\344\277\241\346\201\257.md"
new file mode 100644
index 0000000..e7b775f
--- /dev/null
+++ "b/\350\214\203\351\233\250\346\232\204/20220524-\345\255\246\347\224\237\344\277\241\346\201\257.md"
@@ -0,0 +1,180 @@
+
+
+```php
+<?php
+    $conn = mysqli_connect('localhost','root','root','student') or dir("连接失败");
+    mysqli_query($conn,'set name utf8');
+    $sql = "select * from 'stu' order by stu_id";
+    $res = mysqli_query($conn,$sql);
+?>
+
+<html>
+    <head>
+        <title>学生信息</title>
+    </head>
+    <body>
+        <h1>学生信息首页</h1>
+        <table border="2" width="270">
+            <tr>
+                <th>学生编号</th>
+                <th>学生姓名</th>
+                <th>学生成绩</th>
+                <th>操作</th>
+            </tr>
+<?php
+    if (!mysqli_num_rows($res)){
+        echo "<tr align='center'><td colspan='4'>暂无数据！</td></tr>";
+    }else{
+        while ($qs = mysqli_fetch_assoc($res)){
+    ?>
+            <tr align="center">
+                <td><?php echo $qs['stu_id'];?></td>
+                <td><?php echo $qs['stu_name'];?></td>
+                <td><?php echo $qs['stu_score'];?></td>
+                <td>
+                    <a href="alter.php?stu_id=<?php echo $qs['stu_id']?>">修改</a>
+                    <a href="delete.php?stu_id=<?php echo $qs['stu-id']?>">删除</a>
+                </td>
+            </tr>
+<?php
+        }
+    }
+ ?>
+        </table>
+        <a href="Add.php">添加信息</a>
+    </body>
+</html>
+```
+
+```php
+<?php
+//添加
+?>
+
+<html>
+<head>
+    <title>添加学生</title>
+    <style>
+     a{
+         text-decoration: none;
+     }
+    </style>
+</head>
+    <h1>添加学生信息</h1>
+    <form action="save.php" method="post">
+        <table border="2" width="270">
+            <tr>
+                <th>学生编号</th><td><input type="text" name="stu_id"></td>
+            </tr>
+            <tr>
+                <th>学生姓名</th><td><input type="text" name="stu_name"></td>
+            </tr>
+            <tr>
+                <th>学生成绩</th><td><input type="text" name="stu_score"></td>
+            </tr>
+            <tr>
+                <td colspan="2" align="center"><input type="submit" name="submit" value="添加"></td>
+            </tr>
+        </table>
+        <a href="home.php"  class="a">返回主页面</a>
+    </form>
+</html>
+```
+
+```php
+<?php
+$conn = mysqli_connect('localhost','root','root','student');
+mysqli_query($conn,'set name utf8');
+
+if (!isset($_POST['submit'])){
+    echo "决绝访问~";
+}
+
+    $stu_name = $_POST['stu_name'];  // 姓名
+    $stu_score = $_POST['stu_score'];  // 成绩
+
+$sql = "insert into 'stu'(stu_name,stu_score) values('stu_name',stu_score) ";
+
+$res = mysqli_query($conn,$sql);
+
+if ($res){
+    echo "添加成功~ <a href='home.php'>返会首页</a>";
+}else{
+    echo "添加失败~";
+}
+```
+
+```php
+<?php
+//修改
+    $conn = mysqli_connect('localhost','root','root','student') or dir("连接失败");
+    mysqli_query($conn,'set name utf8');
+
+    $stu_id = $_GET['stu_id'];
+    $sql = "select * from 'stu' where 'stu_id'=$stu_id";
+    $res = mysqli_query($conn,$sql);
+    $row = mysqli_fetch_assoc($res);
+?>
+
+<html>
+<head>
+    <title>修改信息</title>
+</head>
+    <h1>修改信息</h1>
+    <form action="" method="post">
+        <table border="2" width="270">
+            <tr>
+                <th>学生名称</th><td><input  type="text" name="stu_name" value="<?php echo $row['stu_name']?>"></td>
+            </tr>
+            <tr>
+                <th>学生成绩</th><td><input type="text" name="stu_score" value="<?php echo $row['stu_score']?>"></td>
+            </tr>
+            <input type="text" name="stu_id" value="<?php echo $row['stu_id'] ?>"hidden>
+            <tr>
+                <td colspan="2" align="center"><input type="submit" name='submit' value="提交">&nbsp;&nbsp;&nbsp;&nbsp; <input type="reset" value="取消"></td>
+            </tr>
+        </table>
+      <a href="home.php">返回</a>
+    </form>
+</html>
+```
+
+```php
+<?php
+
+    $conn = mysqli_connect('localhost', 'root', 'root', 'student') or dir("连接失败");
+    mysqli_query($conn, 'set name utf8');
+
+    if (!isset($_POST['submit'])){
+        die("拒绝访问~");
+    }
+
+    $stu_id = $_POST['stu_id'];
+    $stu_name = $_POST['stu_name'];
+    $stu_score = $_POST['stu_score'];
+
+    $sql = "update `stu` set ` stu_id=$stu_id,stu_name`=$stu_name where stu_score=$stu_score";
+    
+    $res = mysqli_query($conn,$sql);
+    if ($res){
+        echo "修改成功~   <a href='home.php'>返回首页</a>";
+    }else{
+        echo "修改失败~";
+    }
+```
+
+```php
+<?php
+    $conn = mysqli_connect('localhost','root','root','student') or dir("连接失败");
+    mysqli_query($conn,'set name utf8');
+
+    $stu_id = $_GET['stu_id'];
+    $sql = "delete from 'stu' where stu_id=$stu_id";
+    $res = mysqli_query($conn,$sql);
+    if ($res){
+        echo "删除成功~ <a href='home.php'>返回首页</a>";
+    }else{
+        echo "删除失败~";
+    }
+```
+
-- 
Gitee

