From 587f9af623cd09e51c7bf4085172d2b300a9486d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E5=AE=B6=E7=8E=B2?= <1851699117@qq.com>
Date: Fri, 27 May 2022 11:09:00 +0000
Subject: [PATCH 1/3] =?UTF-8?q?=E9=87=8D=E5=91=BD=E5=90=8D=20=E6=9D=8E?=
 =?UTF-8?q?=E5=AE=B6=E7=8E=B2/20220524-=E5=88=86=E6=95=B0=E7=B3=BB?=
 =?UTF-8?q?=E7=BB=9F.md.txt=20=E4=B8=BA=20=E6=9D=8E=E5=AE=B6=E7=8E=B2/2022?=
 =?UTF-8?q?0524-=E5=88=86=E6=95=B0=E7=B3=BB=E7=BB=9F.md?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 .../20220524-\345\210\206\346\225\260\347\263\273\347\273\237.md" | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename "\346\235\216\345\256\266\347\216\262/20220524-\345\210\206\346\225\260\347\263\273\347\273\237.md.txt" => "\346\235\216\345\256\266\347\216\262/20220524-\345\210\206\346\225\260\347\263\273\347\273\237.md" (100%)
diff --git "a/\346\235\216\345\256\266\347\216\262/20220524-\345\210\206\346\225\260\347\263\273\347\273\237.md.txt" "b/\346\235\216\345\256\266\347\216\262/20220524-\345\210\206\346\225\260\347\263\273\347\273\237.md"
similarity index 100%
rename from "\346\235\216\345\256\266\347\216\262/20220524-\345\210\206\346\225\260\347\263\273\347\273\237.md.txt"
rename to "\346\235\216\345\256\266\347\216\262/20220524-\345\210\206\346\225\260\347\263\273\347\273\237.md"
-- 
Gitee


From c052070a05edbf07e3e3fc92e41dc9095d1a63e6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E5=AE=B6=E7=8E=B2?= <1851699117@qq.com>
Date: Sun, 29 May 2022 03:55:35 +0000
Subject: [PATCH 2/3] =?UTF-8?q?=E4=BD=9C=E4=B8=9A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...45\275\225\346\263\250\351\224\200.md.txt" | 267 ++++++++++++++++++
 1 file changed, 267 insertions(+)
 create mode 100644 "\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md.txt"

diff --git "a/\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md.txt" "b/\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md.txt"
new file mode 100644
index 0000000..0195281
--- /dev/null
+++ "b/\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md.txt"
@@ -0,0 +1,267 @@
+```mysql
+//定义MySQL表格
+create database book charset utf8;
+use book;
+create table user(
+id int primary key auto_increment,
+name varchar(20) not null,
+score DECIMAL(3.1) not null
+);
+```
+
+
+
+```php
+//在原来的基础上加了登录界面，登录完成后才能进行增删改查！
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>学生信息管理系统登录界面</title>
+</head>
+<body>
+<h1>学生信息管理系统登录界面</h1>
+<form action="Dom11.php" method="post">
+<table>
+    <tr>
+        <th>
+            账号：  </th>
+        <td><input type="text" name="username">
+        </td>
+    </tr>
+    <tr>
+        <th>密码：</th>
+        <td>
+            <input type="password" name="password">
+        </td>
+    </tr>
+    <tr>
+        <td></td>
+        <td>
+            <input type="checkbox" name="auto" value="ok">7天自动登录
+        </td>
+    </tr>
+       <tr>
+           <td><input type="submit" value="登录" name="submit"></td>
+           <td align="center" >
+            <input type="reset" value="取消">
+        </td>
+    </tr>
+
+</table>
+</form>
+</body>
+</html>
+```
+
+```php
+//点击登录按键后会判断用户是否登录成功 输入密码认证成功显示用户身份并进入管理系统首页进行增删改查！
+<?php
+session_start();
+$user = $_SESSION['username']?:$_COOKIE['username'];
+if (isset($user) && $user=="aa"){
+    echo "尊敬的".$user."<br>";
+    echo "<a href='Dom1.php'>点击进入管理系统首页</a>"."<br>";
+    echo "<a href='Dom13.php' >注销</a>";
+
+}else{
+    
+    echo "你还没有登录！<a href='Dom12.html'>马上去登录！</a>";
+}
+```
+
+```php
+//注销
+<?php
+session_start();
+unset($_SESSION['username']);
+setcookie('username','',time()-1);
+echo "注销成功！";
+```
+
+```php
+//管理系统首页
+<?php
+include_once ('conn.php');
+$sql="select * from `user` ";
+$result=mysqli_query($conn,$sql);
+?>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title>学生信息管理</title>
+</head>
+<body>
+<h1>学生信息管理</h1>
+<table border="1" width="300">
+    <tr>
+        <th>学号</th>
+        <th>姓名</th>
+        <th>成绩</th>
+        <th>操作</th>
+    </tr>
+    <?php
+    if(!mysqli_num_rows($result)) {//
+        echo "<tr align='center'><td colspan='4'>暂无数据</td></tr>";
+    }else {
+        while ($row = mysqli_fetch_assoc($result)) {
+            ?>
+            <tr align="center">
+                <td><?php echo $row['id'];?></td>
+                <td><?php echo $row['name'];?></td>
+                <td><?php echo $row['score'];?></td>
+                <td><a href="edit.php?id=<?php echo $row['id'] ?>">修改</a>|
+                    <a href="delete.php?id=<?php echo $row['id'] ?>">删除</a></td>
+            </tr>
+            <?php
+        }
+    }
+    ?>
+</table>
+<a href="add.php">添加信息</a>
+</body>
+</html>
+```
+
+
+
+
+
+```php
+//添加信息
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Administrator
+ * Date: 2022/5/25
+ * Time: 19:05
+ */
+?>
+<html>
+<head>
+    <meta charset="utf-8">
+    <title>添加学生信息</title>
+</head>
+
+<h1>添加学生信息</h1>
+<form action="save.php" method="post" >
+    <table border="1" width="300">
+
+        <tr>
+            <th>姓名</th><td><input type="text" name="name"></td>
+        </tr>
+
+        <tr>
+            <th>成绩</th><td><input type="text" name="score"></td>
+        </tr>
+        <tr>
+            <td colspan="2" align="center"><input type="submit" value="提交" name='submit' ></td>
+        </tr>
+    </table>
+    <a href="Dom1.php">返回首页</a>
+</form>
+
+</html>
+```
+
+```php
+<?php
+include_once ('conn.php');
+
+if(!isset($_POST['submit'])){
+    die("你通过访问的渠道不是很正规哦小逼崽子！！！");
+}
+
+$name=$_POST['name'];
+$score=$_POST['score'];
+
+$sql="insert into `user`(`name`,`score`)values ('$name','$score')";
+$result=mysqli_query($conn,$sql);
+if($result){
+    echo "添加成功"."<br> <a href='add.php' >继续添加数据</a> &nbsp;&nbsp;&nbsp;<a href='Dom1.php'>返回首页</a>";
+
+}else{
+    echo "添加失败！";}
+```
+
+
+
+```php
+//修改
+<?php
+include_once ("conn.php");
+if(!isset($_GET['id'])){
+    die("你通过访问的渠道不是很正规哦小逼崽子！！！");
+}
+$id=$_GET['id'];
+$sql = "select * from `user` where `id`=$id";// 从数据库查询id为$book_id的数据
+$result = mysqli_query($conn,$sql);
+$row = mysqli_fetch_assoc($result);
+?>
+<html>
+<head>
+    <title>修改信息</title>
+
+</head>
+<h1>修改信息</h1>
+<form action="update.php" method="post">
+    <table border="1" width="300">
+        <tr>
+            <th>姓名</th><td><input type="text" name="name" value="<?php echo $row['name'] ?>"></td>
+        </tr>
+        <tr>
+            <th>成绩</th><td><input type="text" name="score" value="<?php echo $row['score'] ?>"></td>
+        </tr>
+
+        <input type="text" name="id" value="<?php echo $row['id'] ?>" hidden>
+        <tr>
+            <td colspan="2" align="center"><input type="submit" name='submit' value="提交">&nbsp;&nbsp; <input type="reset" value="取消"></td>
+        </tr>
+    </table>
+    <a href="Dom1.php">返回</a>
+
+</form>
+</html>
+```
+
+```php
+<?php
+include_once('conn.php');
+if(!isset($_POST['submit'])){
+    die("你通过访问的渠道不是很正规哦小逼崽子！！");
+}
+
+$id=$_POST['id'];
+$name=$_POST['name'];
+$score=$_POST['score'];
+$sql = "update `user` set `name`='$name',`score`=$score where id=$id";
+$ret = mysqli_query($conn,$sql);
+if($ret){
+    echo "修改成功！<a href='Dom1.php'>返回首页</a>";
+}else{
+    echo "修改失败！";
+}
+```
+
+```php
+//删除
+<?php
+include_once('conn.php');
+$id=$_GET['id'];
+$sql = "delete from `user` where id=$id";
+$ret = mysqli_query($conn,$sql);
+if($ret){
+    echo "删除成功！";
+    header('location:Dom1.php');
+}else{
+    echo "删除失败！";
+}
+```
+
+```php
+//把常用的代码放在一个文件里需要直接导入即可
+<?php
+error_reporting(E_ALL^E_WARNING);
+$conn=mysqli_connect("127.0.0.1","root","123456","book") or die("连接失败!".mysqli_connect_errno());
+mysqli_query($conn,"set names utf8");//设置传到mysql里的语言
+```
\ No newline at end of file
-- 
Gitee


From 668ca05a941fd597cfc7c2fc7c10311e5e99d161 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E5=AE=B6=E7=8E=B2?= <1851699117@qq.com>
Date: Sun, 29 May 2022 03:55:49 +0000
Subject: [PATCH 3/3] =?UTF-8?q?=E9=87=8D=E5=91=BD=E5=90=8D=20=E6=9D=8E?=
 =?UTF-8?q?=E5=AE=B6=E7=8E=B2/20220525-=E5=8A=A0=E7=99=BB=E5=BD=95?=
 =?UTF-8?q?=E6=B3=A8=E9=94=80.md.txt=20=E4=B8=BA=20=E6=9D=8E=E5=AE=B6?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
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diff --git "a/\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md.txt" "b/\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md"
similarity index 100%
rename from "\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md.txt"
rename to "\346\235\216\345\256\266\347\216\262/20220525-\345\212\240\347\231\273\345\275\225\346\263\250\351\224\200.md"
-- 
Gitee

