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来源：2-11 编程练习

慕UI4313976

2021-10-17 14:46:04

<!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>
        const obj = {
            "0": "xm",
            "sex": "male",
            length: 2
        }
        // 在此补充代码
       
        obj[Symbol.iterator] = ()=>{
          let index = 0;
          return{
            next(){
              index++;
              if(index === 1){
                return{
                  value:obj['0'],
                  done:false,
                }
              }else if(index === 2){
                return{
                  value:obj['sex'],
                  done:false,
                }
              }else{
                return{
                  value:undefined,
                  done:true,
                }
              }
            }
          }
        }

        // obj[Symbol.iterator] = Array.prototype[Symbol.iterator];

        for(const item of obj){
          console.log(item);
        }

       
    </script>
</body>

</html>

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