diff --git "a/\351\273\204\351\243\236\351\276\231/5.17/demo2.html" "b/\351\273\204\351\243\236\351\276\231/5.17/demo2.html"
new file mode 100644
index 0000000000000000000000000000000000000000..95248fa383a983d284780185239a4546ff02ccec
--- /dev/null
+++ "b/\351\273\204\351\243\236\351\276\231/5.17/demo2.html"
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    
+</body>
+<script>
+    var arr = [1,1,2,3,6,6,5,4,41,1,1,2,]
+    function newapp(arr){
+        let newarr=[]
+        for(let i= 0;i<arr.length;i++){
+            let flag = true
+            for(let j= 0 ;j<newarr.length;j++){
+                arr[i]===newarr[j]?flag=false:flag
+            };
+            flag?newarr.push(arr[i]):newarr
+        }
+        return newarr
+    }
+    console.log(newapp(arr));
+</script>
+</html>
\ No newline at end of file
