diff --git "a/\345\255\231\350\257\227\346\235\260/20220526-\344\275\234\344\270\232 .md" "b/\345\255\231\350\257\227\346\235\260/20220526-\344\275\234\344\270\232 .md"
new file mode 100644
index 0000000000000000000000000000000000000000..99a1d922f5240aea21019be462e7f87db871a5e1
--- /dev/null
+++ "b/\345\255\231\350\257\227\346\235\260/20220526-\344\275\234\344\270\232 .md"	
@@ -0,0 +1,183 @@
+```php
+<?php
+$coon = mysqli_connect('127.0.0.1','root','root','bookstore') or die("链接失败");
+mysqli_query($coon,'set names utf8');
+
+
+<?php
+include_once('coon.php');
+$sql = "select * from `bookstore1` order by id";
+$rest = mysqli_query($coon,$sql);
+
+?>
+<html>
+<head>
+    <title>图书管理系统——首页</title>
+    <style>
+        #de{
+            width: 440px;
+            height: 300px;
+            /*background-color: aqua;*/
+            margin: 0 auto;
+            padding-left: 80px;
+        }
+    </style>
+</head>
+<body>
+<div id="de">
+    <h1>图书管理系统——首页</h1>
+
+    <table border="1" cellpadding="0" cellspacing="1">
+        <tr><th>书号</th><th>书名</th><th>作者</th><th>出版社</th><th>价格</th><th>操作</th></tr>
+
+        <?php
+
+        if(!mysqli_num_rows($rest)){
+            echo "<tr><td colspan='6' align='center'>暂无数据</td></tr>";
+        }else{
+            while($arr = mysqli_fetch_assoc($rest)) {
+
+
+                ?>
+                <tr>
+                    <td><?php echo $arr['id']?></td>
+                    <td><?php echo $arr['bookname']?></td>
+                    <td><?php echo $arr['bookauthar']?></td>
+                    <td><?php echo $arr['bookaddress']?></td>
+                    <td><?php echo $arr['money']?></td>
+                    <td><a href="update.php?id=<?php echo $arr['id']?>" >编辑</a> | <a href="delete.php?id=<?php echo $arr['id']?>">删除</a></td>
+                </tr>
+
+
+                <?php
+            }
+        };
+        ?>
+        <tr><td colspan="6" align="center"> <a  href="add.php">添加图书</a></td></tr>
+    </table>
+
+
+
+
+</div>
+
+
+
+</body>
+
+</html>
+
+            
+            
+            <?php
+
+?>
+<html>
+<head><title>增加界面</title></head>
+<body>
+<h1>我是增加书籍界面</h1>
+<form action="save.php" method="post" name="add">
+    <table border="1">
+        <tr><th>书名</th><td><input type="text" name="name" id=""></td></tr>
+        <tr><th>作者</th><td><input type="text" name="author" id=""></td></tr>
+        <tr><th>出版社</th><td><input type="text" name="address" id=""></td></tr>
+        <tr><th>价格</th><td><input type="text" name="money" id=""></td></tr>
+        <tr><td colspan="2" align="center"><input type="submit" value="提交" id=""><input type="reset" value="重置"></td></tr>
+    </table>
+
+</form>
+</body>
+</html>
+
+            
+            <?php
+$name = $_POST['name'];
+$author =$_POST['author'];
+$address=$_POST['address'];
+$money=$_POST['money'];
+include_once('coon.php');
+$sql = "insert into `bookstore1` value (null,'$name','$author','$address',$money)";
+
+$result = mysqli_query($coon,$sql);
+
+if($result){
+    echo "添加成功<a href='indext.php'>返回首页</a>";
+}else{
+    echo "添加失败<a href = add.php>返回上一级</a>";
+}
+
+
+
+
+
+<?php
+//echo "bianji";
+$id = $_GET['id'];
+include_once ('./coon.php');
+$sql = "select * from `bookstore1` where id = $id";
+$rest=mysqli_query($coon,$sql);
+$arr1 = mysqli_fetch_assoc($rest);
+
+?>
+
+<html>
+<head><title>编辑界面</title></head>
+<body>
+<h1>编辑界面</h1>
+<form action="save_update.php" method="post">
+    <table border="1">
+        <input type="text" value="<?php echo $arr1['id']?>" name="id" hidden>
+        <tr><th>书号</th><td><?php echo $arr1['id']?></td></tr>
+        <tr><th>书名</th><td><input type="text" name="bookname" value="<?php echo $arr1['bookname']?>"></td></tr>
+        <tr><th>作者</th><td><input type="text" name="bookauthar" value="<?php echo $arr1['bookauthar']?>"></td></tr>
+        <tr><th>出版社</th><td><input type="text" name="bookaddress" value="<?php echo $arr1['bookaddress']?>"></td></tr>
+        <tr><th>价格</th><td><input type="text" name="money" value="<?php echo $arr1['money']?>"></td></tr>
+        <tr><td colspan="2"><input type="submit" value="确认"><input type="reset" value="重置"></td></tr>
+
+
+
+    </table>
+
+</form>
+
+</body>
+
+</html>
+    
+    
+    
+    
+    
+    
+ <?php
+$id =$_POST['id'];
+$name = $_POST['bookname'];
+$author = $_POST['bookauthar'];
+$address = $_POST['bookaddress'];
+$money = $_POST['money'];
+include_once ('coon.php');
+$sql = "update `bookstore1` set `bookname`='$name',`bookauthar`='$author',`bookaddress`='$address',money=$money where id=$id";
+$rest  = mysqli_query($coon,$sql);
+if($rest){
+    echo "修改成功<a href='indext.php'>返回首页</a>";
+}else{
+    echo "修改失败<a href = update.php>返回上一级</a>";
+}
+
+
+<?php
+//echo "删除";
+$id = $_GET['id'];
+include_once ('coon.php');
+$sql  = "delete from `bookstore1` where id=$id";
+$rest = mysqli_query($coon,$sql);
+if($rest){
+    echo "删除成功<a href='indext.php'>返回首页</a>";
+}else{
+    echo "添加失败<a href ='add.php'>返回上一级</a>";
+}
+
+
+
+```
+
