fengchuanyu 3 týždňov pred
rodič
commit
806365bc39

+ 47 - 0
2-JavaScript/15_函数.html

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+<!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>
+    <script>
+        var a = 1;
+        var b = 2;
+
+        // 函数的定义 通过 function 定义函数。sum为函数名 ()参数数部分 {}函数体
+        // function sum(i,j){
+        //    console.log(i+j); 
+        // }
+
+        // 函数的调用 函数名(参数部分)
+        // sum(a,b);
+
+
+        // function sum(i,j){
+        //     // return 表示返回值
+        //     return i+j;
+        // }
+
+        // var num = sum(a,b);
+        // console.log(num);
+
+        // 没有名字的函数称为匿名函数
+        // 定义部分的参数称为形参
+        var sum = function(i,j){
+            return i+j;
+        }
+
+
+        // 函数的调用部分的参数称为实参
+        var num = sum(a,b);
+        console.log(num);
+
+
+
+
+        
+    </script>
+</body>
+</html>

+ 61 - 0
2-JavaScript/练习6_判断星期.html

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+<!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>
+    <script>
+        // 文本框输入的内容 是字符串类型
+        var week = prompt("请输入星期");
+        week = parseInt(week);
+
+        switch(week){
+            case 0:
+                console.log("星期日");
+                break;
+            case 1:
+                console.log("星期一");
+                break;
+            case 2:
+                console.log("星期二");
+                break;
+            case 3:
+                console.log("星期三");
+                break;
+            case 4:
+                console.log("星期四");
+                break;
+            case 5:
+                console.log("星期五");
+                break;
+            case 6:
+                console.log("星期六");
+                
+                break;
+            default:
+                console.log("输入错误");
+        }
+
+        if(week == 0){
+            console.log("星期日");
+        }else if(week == 1){
+            console.log("星期一");
+        }else if(week == 2){
+            console.log("星期二");
+        }else if(week == 3){
+            console.log("星期三");
+        }else if(week == 4){
+            console.log("星期四");
+        }else if(week == 5){
+            console.log("星期五");
+        }else if(week == 6){
+            console.log("星期六");
+        }else{
+            console.log("输入错误");
+        }
+
+    </script>
+</body>
+</html>