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2021-06-03 10:52:41 +08:00
parent c5f18c6051
commit 907511778b
54 changed files with 3540 additions and 50 deletions
--- a/teaching/lhj/kejian/js/digui.html
+++ b/teaching/lhj/kejian/js/digui.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=\, initial-scale=1.0">
+    <title>Document</title>
+    <script>
+        //递归 : 函数中  自己调用自己
+        function jiecheng(n){
+            var jieguo=1
+            for(var i=n;i>0;i--){
+                jieguo=jieguo*i
+            }
+            return jieguo 
+        }
+        // console.log(jiecheng(5))
+        // 阶乘 5    =〉5*4*3*2*1
+        
+        function jc(m){
+            if(m<=1){
+                return 1
+            }else{
+                return m*jc(m-1)
+            }
+        }
+        // function jc1(m){
+        //     if(m<=1){
+        //         return 1
+        //     }else{
+        //         return m*jc(m-1)
+        //     }
+        // }
+
+        // 5*jc(4)
+        // 4*jc(3)
+        // 3*jc(2)
+        // 2*jc(1)
+        // 2*1
+
+        // console.log(jc(5))
+
+        var jc1=jc
+        jc=null;
+        console.log(jc1(5))
+
+    </script>
+</head>
+<body>
+    
+</body>
+</html>