递归出题

2021-04-09 16:36:34 +08:00
parent 71190d870d
commit 812be57880
28 changed files with 1834 additions and 227 deletions
--- a/teaching/jwl/课件/js/digui.html
+++ b/teaching/jwl/课件/js/digui.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <script>
+        function jiecheng(n){
+            if(n==1){
+                return 1
+            }else{
+                console.log(arguments.callee)
+                return n*arguments.callee(n-1)
+                // 5*5-1    5*4
+                // 5*4*3
+                // 5*4*3*2
+                // 5*4*3*2*1
+
+            }
+        }
+        // 5*4*3*2*1
+        // function jc(n){
+        //     if(n==1){
+        //         return 1
+        //     }else{
+        //         return n*a(n-1)
+        //         // 5*5-1    5*4
+        //         // 5*4*3
+        //         // 5*4*3*2
+        //         // 5*4*3*2*1
+
+        //     }
+        // }
+      
+        var jc=jiecheng
+        jiecheng=null
+        var sum=jc(5)   //120
+        console.log(sum)
+    </script>
+</head>
+<body>
+    
+</body>
+</html>