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前端作业-JavaSctipt 07-07作业
︷肉園耔︷
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499 people have browsed it
  • 命名规则：
    —变量和函数为驼峰式，第一个单词首字母为大写；
    —连接属性下划线为连接
    —不能数字为开头
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  6.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  7.     <title>Document</title>
  8. </head>
  9. <body>
  10.     <script>
  11.         function getName(name){
  12.             return "Welconme to" + name;
  14.         }
  15.         //调用
  16.         console.log(getName('朱老师'));
  18.       //重写
  19.       function  getName(name,city){
  20.           return "欢迎来自"+city+"的"+name;
  21.       }
  22.     console.log(getName("谢老师","都匀"))
  24.     console.log(sum(600,800));
  25.     function sum(a=4,b){
  26.         return a +b;
  27.     }
  28.     console.log(sum(300));
  30.     //归并参数。rest
  31.     sum =function (... arr){
  32.      //   console.log(arr);
  33.     //   let res =0;
  34.     //   for(let i=0; i<arr.length;i++){
  35.     //       res += arr[i];
  37.     //     }
  38.     //   return res;
  40.     }
  41.     let a1 =[1,2,3,4,5,6,7];
  42.     //console.log(sum(1,2,3,4,5,6,7));
  43.     //console.log(sum(a1));
  44.     console.log(sum(...a1));
  46.     function getProduct(){
  47.         return [123,"手机",654987,"HUAWEI"];
  48.     }
  49.     let mobile=getProduct();
  50.     console.log(mobile);
  51.     console.log(mobile[3]);
  53.     function getProduct(){
  54.         return {id:123,name:"手机","my price":654987,brand:"HUAWEI"};
  55.     }
  56.     console.log(mobile["my price"]);
  57.      sum =(a,b) => {
  58.         return a +b;
  59.     };
  60.     console.log(sum(10,20));
  61. /*
  62.     let getName=function(name){
  63.         return "hello" +name;
  64.     }
  65. */
  66.     getName=name =>{
  67.         return "Hello3"+ name;
  68.     }
  70.     console.log(getName("老猪"));
  72.   //单一函数 可以省略 
  73.     sum=(a,b)=>a+b;
  75.     console.log(sum(80,50));
  77.     //声明
  78.     function sun(a,b){
  79.         return a+b;
  80.     };
  82.     //调用
  83.   console.log(sum(50,60));
  85. //简化声明 用圆括号包住，使之转为表达式
  86. (function sum(a,b){
  87.     console.log(a+b);
  88. })(40,20);
  89.  </script>
  90. </body>
  91. </html>
Correcting teacher：天蓬老师天蓬老师

Correction status：qualified

Teacher's comments：
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