From 586723b192a5ce1bed5cf3b43b042861e91d0f99 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8B=8F=E6=BD=87?= <177440695@qq.com>
Date: Sun, 29 May 2022 16:20:15 +0800
Subject: [PATCH 1/2] 220525

---
 ...41\347\220\206\347\263\273\347\273\237.md" | 263 ++++++++++++++++++
 1 file changed, 263 insertions(+)
 create mode 100644 "\350\213\217\346\275\207/22020525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"
diff --git "a/\350\213\217\346\275\207/22020525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md" "b/\350\213\217\346\275\207/22020525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"
new file mode 100644
index 0000000..46d82f4
--- /dev/null
+++ "b/\350\213\217\346\275\207/22020525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"
@@ -0,0 +1,263 @@
+# 作业
+
+mysql
+
+```mysql
+create table user(
+	id int primary key auto_increment,
+	name varchar(30) not null,
+	age int not null,
+	address varchar(200) not null
+);
+```
+
+连接
+
+```php
+<?php
+$link=mysqli_connect('127.0.0.1','root','root','student');
+mysqli_query($link,"set names utf8");
+```
+
+界面
+
+```php
+<?php
+include_once('link.php');
+
+$sql = "select * from user ";
+$ret = mysqli_query($link, $sql);
+?>
+
+<html>
+    <head>
+        <title>学生管理系统</title>
+        <meta charset="utf-8">
+        <script>
+            function del(){
+                if(!window.confirm("确定要删除吗？")){
+                    return false;
+                }
+            }
+        </script>
+    </head>
+
+    <body>
+    <h1>学生管理系统</h1>
+        <table border='2' width='500' >
+                <tr>
+                    <th>编号</th>
+                    <th>姓名</th>
+                    <th>年龄</th>
+                    <th>籍贯</th>
+                    <th>管理</th>
+                </tr>
+            <?php
+                while ($arr = mysqli_fetch_assoc($ret)) {
+                    ?>
+                    <tr align='center'>
+                        <td><?php echo $arr['id'] ?></td>
+                        <td><?php echo $arr['name'] ?></td>
+                        <td><?php echo $arr['age'] ?></td>
+                        <td><?php echo $arr['address'] ?></td>
+                        <td><a href="update.php?id=<?php echo $arr['id'] ?>">修改</a> |
+                            <a href="delete.php?id=<?php echo $arr['id'] ?>" onclick="return del()">删除</a> </td>
+                    </tr>
+                    <?php
+                };
+            ?>
+        </table>
+        <a href="add.php">添加学生数据</a>
+    </body>
+</html>
+```
+
+添加
+
+```html
+<html>
+<head><title>添加系统</title></head>
+<script>
+    function check(){
+        if(add.name.value=='' || add.age.value=='' ||add.address.value==''){
+            alert("内容填写不完整！！");
+            return false;
+        }
+    }
+</script>
+<body>
+<h1>学生添加系统</h1>
+<form action="save.php" name="add" method="post">
+    <table border="1" width="250">
+        <tr>
+            <th>
+                姓名
+            </th>
+            <td>
+                <input type="text" name='name' >
+            </td>
+        </tr>
+
+        <tr>
+            <th>
+                年龄
+            </th>
+            <td>
+                <input type="text" name='age' >
+            </td>
+        </tr>
+
+        <tr>
+            <th>
+                籍贯
+            </th>
+            <td>
+                <input type="text" name='address' >
+            </td>
+        </tr>
+
+        <tr align="center">
+            <td colspan="2">
+                <input type="submit" value="提交"onclick="return check()">
+                <input type="reset" value="重置">
+            </td>
+        </tr>
+    </table>
+
+</form>
+</body>
+</html>
+```
+
+```php
+<?php
+$name=$_POST['name'];
+$age=$_POST['age'];
+$address=$_POST['address'];
+
+include_once ('link.php');
+
+$sql=" insert into `user` value (null,'$name',$age,'$address')";
+
+
+$ret=mysqli_query($link,$sql);
+
+if ($ret){
+    echo "添加成功 <a href='index.php'>返回学生管理系统</a>";
+}else{
+    echo "<script>alert('添加失败');history.go(-1);</script> ";
+}
+```
+
+修改
+
+```html
+<?php
+$id=$_GET['id'];
+
+include_once ('link.php');
+
+$sql="select * from `user` where id='$id' ";
+$ret=mysqli_query($link,$sql);
+$arr=mysqli_fetch_assoc($ret);
+?>
+
+
+
+<html>
+<head><title>修改系统</title></head>
+<body>
+<h1>学生修改系统</h1>
+<form action="update_save.php" name="add" method="post">
+    <table border="1" width="250">
+        <tr>
+            <th>
+                编号
+            </th>
+            <td align="center">
+                <?php echo $arr['id'] ?>
+                <input type="hidden" value="<?php echo $arr['id'] ?>" name="id">
+            </td>
+        </tr>
+
+        <tr>
+            <th>
+                姓名
+            </th>
+            <td align="center">
+                <input type="text" name="name">
+            </td>
+        </tr>
+
+        <tr>
+            <th>
+                年龄
+            </th>
+            <td align="center">
+                <input type="text" name='age' >
+            </td>
+        </tr>
+
+        <tr>
+            <th>
+                籍贯
+            </th>
+            <td align="center">
+                <input type="text" name='address' >
+            </td>
+        </tr>
+
+        <tr align="center">
+            <td colspan="2">
+                <input type="submit" value="提交">
+            </td>
+        </tr>
+    </table>
+
+</form>
+</body>
+</html>
+```
+
+```php
+<?php
+$id=$_POST['id'];
+$name=$_POST['name'];
+$age=$_POST['age'];
+$address=$_POST['address'];
+
+include_once ('link.php');
+
+$sql=" update `user` set `name`='$name',`age`=$age,`address`='$address' where `id`=$id";
+
+
+$ret=mysqli_query($link,$sql);
+
+if ($ret){
+    echo "修改成功 <a href='index.php'>返回学生管理系统</a>";
+}else{
+    echo "<script>alert('修改失败');history.go(-1);</script> ";
+}
+```
+
+删除
+
+```php
+<?php
+$id=$_GET['id'];
+
+
+include_once ('link.php');
+
+$sql="delete from `user` where `id`=$id";
+
+
+$ret=mysqli_query($link,$sql);
+
+if ($ret){
+    echo "删除成功 <a href='index.php'>返回学生管理系统</a>";
+}else{
+    echo "<script>alert('删除失败');history.go(-1);</script> ";
+}
+```
+
-- 
Gitee


From 8ee1257ec1291f74d94817e1a4ae867db2ddab7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8B=8F=E6=BD=87?= <177440695@qq.com>
Date: Thu, 2 Jun 2022 23:12:50 +0800
Subject: [PATCH 2/2] 220601

---
 ...41\347\220\206\347\263\273\347\273\237.md" |  0
 .../20220601-PHP\344\274\232\350\257\235.md"  | 85 +++++++++++++++++++
 2 files changed, 85 insertions(+)
 rename "\350\213\217\346\275\207/22020525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md" => "\350\213\217\346\275\207/20220525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md" (100%)
 create mode 100644 "\350\213\217\346\275\207/20220601-PHP\344\274\232\350\257\235.md"

diff --git "a/\350\213\217\346\275\207/22020525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md" "b/\350\213\217\346\275\207/20220525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"
similarity index 100%
rename from "\350\213\217\346\275\207/22020525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"
rename to "\350\213\217\346\275\207/20220525-\345\255\246\347\224\237\347\256\241\347\220\206\347\263\273\347\273\237.md"
diff --git "a/\350\213\217\346\275\207/20220601-PHP\344\274\232\350\257\235.md" "b/\350\213\217\346\275\207/20220601-PHP\344\274\232\350\257\235.md"
new file mode 100644
index 0000000..a29dbee
--- /dev/null
+++ "b/\350\213\217\346\275\207/20220601-PHP\344\274\232\350\257\235.md"
@@ -0,0 +1,85 @@
+# 作业
+
+```php
+<?php
+session_start();
+
+
+
+$user=isset($_POST['user'])?$_POST['user']:"";
+$pw=isset($_POST['password'])?$_POST['password']:"";
+
+if (!empty($user)){
+    if ($user=='苏潇' && $pw=='132535'){
+        $_SESSION['user']='苏潇';
+        setcookie('user','苏潇',time()+60*60*24*100);
+        echo "登陆成功";
+
+        echo "<a href='cg.php'>查看余额</a>";
+    }else{
+        echo "登陆失败";
+    }
+}
+else{
+
+
+?>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport"
+          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>登录</title>
+</head>
+<body>
+<form action="" method="post">
+    用户名：<input type="text" name="user">
+    <br>
+    密码：<input type="password" name="password">
+    <br>
+    <input type="submit">
+</form>
+</body>
+</html>
+<?php
+}
+?>
+```
+
+```php
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Administrator
+ * Date: 2022/6/1
+ * Time: 16:23
+ */
+    session_start();
+    $user=$_COOKIE['user']?:$_SESSION['user'];
+    if (empty($user)){
+
+        echo "未登录<a href='login.php'>请重新登录</a>";
+        exit();
+    }
+
+    echo$user.",您的余额为1.000";
+    echo "<a href='exit.php'>退出登录</a>";
+```
+
+```php
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Administrator
+ * Date: 2022/6/1
+ * Time: 16:38
+ */
+session_start();
+
+unset($_SESSION['user']);
+echo "退出成功<a href='login.php'>返回登陆界面</a>";
+```
+
+
+
-- 
Gitee

