From a3df3654e81e1055e217c6d1e6184c2c07af4b50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9E=97=E4=BF=8A=E4=BC=9F?= <2421084001@qq.com>
Date: Thu, 18 May 2023 09:37:20 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BD=9C=E4=B8=9A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...00\346\254\241\344\275\234\344\270\232.md" | 75 +++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 "12 \346\236\227\344\277\212\344\274\237/0516 \347\254\254\344\270\200\346\254\241\344\275\234\344\270\232.md"

diff --git "a/12 \346\236\227\344\277\212\344\274\237/0516 \347\254\254\344\270\200\346\254\241\344\275\234\344\270\232.md" "b/12 \346\236\227\344\277\212\344\274\237/0516 \347\254\254\344\270\200\346\254\241\344\275\234\344\270\232.md"
new file mode 100644
index 0000000..7cdc30c
--- /dev/null
+++ "b/12 \346\236\227\344\277\212\344\274\237/0516 \347\254\254\344\270\200\346\254\241\344\275\234\344\270\232.md"	
@@ -0,0 +1,75 @@
+    import java.sql.Connection;
+    import java.sql.DriverManager;
+    import java.sql.SQLException;
+    import java.sql.Statement;
+    
+    public class insert {
+        public static void main(String[] args) {
+            Statement str = null;
+            Connection con = null;
+            try {
+                Class.forName("com.mysql.jdbc.Driver");
+                String url = "jdbc:mysql://localhost:3306/aaa?useSSL=false&characterEncoding=utf8";
+                String usename = "root";
+                String password = "root";
+                con = DriverManager.getConnection(url, usename, password);
+                String sql = "insert into Student value(1,'老王','男'),(2,'老表','男')";
+                str = con.createStatement();
+                int i = str.executeUpdate(sql);
+                if (i > 0) {
+                    System.out.println("插入成功");
+                } else {
+                    System.out.println("插入失败");
+                }
+       } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入正常");
+        } catch (SQLException e) {
+            System.out.println("mysql语法错误");
+        } finally {
+            try {
+                str.close();
+                con.close();
+            } catch (SQLException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+    }
+    import java.sql.Connection;
+    import java.sql.DriverManager;
+    import java.sql.SQLException;
+    import java.sql.Statement;
+    
+    public class delect {
+        public static void main(String[] args) {
+            Statement str = null;
+            Connection con = null;
+            try {
+                Class.forName("com.mysql.jdbc.Driver");
+                String url = "jdbc:mysql://localhost:3306/aaa?useSSL=false&characterEncoding=utf8";
+                String usename = "root";
+                String password = "root";
+                con = DriverManager.getConnection(url, usename, password);
+                String sql = "delete from Student where id=4";
+                str = con.createStatement();
+                int i = str.executeUpdate(sql);
+                if (i > 0) {
+                    System.out.println("删除成功");
+                } else {
+                    System.out.println("删除失败");
+                }
+                    } catch (ClassNotFoundException e) {
+            System.out.println("导包异常");
+        } catch (SQLException e) {
+            System.out.println("mysql语法错误");
+        } finally {
+            try {
+                str.close();
+                con.close();
+            } catch (SQLException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+    }
+
-- 
Gitee