diff --git "a/\345\210\230\344\275\263\344\270\275/20220522-\346\217\220\344\272\244\346\226\207\344\273\266.md" "b/\345\210\230\344\275\263\344\270\275/20220522-\346\217\220\344\272\244\346\226\207\344\273\266.md"
new file mode 100644
index 0000000000000000000000000000000000000000..9ccefac798b07b3cefe85061eefed75f60ab5a11
--- /dev/null
+++ "b/\345\210\230\344\275\263\344\270\275/20220522-\346\217\220\344\272\244\346\226\207\344\273\266.md"
@@ -0,0 +1,51 @@
+# 作业
+
+```php
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>上传文件</title>
+</head>
+<body>
+<form action="li.php" method="post" enctype="multipart/form-data">
+    请选择上传文件<input type="file" value="上传文件" name="myfile"/>
+    <br>
+    <input type="submit" value="上传"/>
+
+</form>
+</body>
+</html>
+<?php
+//var_dump($_FILES);
+
+
+$error= $_FILES["myfile"]["error"];
+if($error==0){
+    echo "上传文件成功！<br>";
+    //1M=1024*1024;
+    define("SIZE",1024*1024);
+    $size= $_FILES["myfile"]["type"];
+    if($size<=SIZE) {
+        echo "可以上传文件大小<br>";
+        $array = array("docx", "pdf");
+        $type = $_FILES["myfile"]["name"];
+        "<br>";
+//      echo $_FILES["myfile"]["name"];
+        $lastname = explode(".", $type);
+
+        $last= $lastname[count($lastname)-1];
+//        echo $last;
+        $a = array_search($last, $array);
+
+        if ($a===false){
+            echo "上传失败类型不匹配";
+        }else{
+            echo "上传成功";
+        }
+
+    }
+}else{
+    echo "上传失败";
+}
+```
\ No newline at end of file
