<!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>
</body>
<script>
// 声明一个对象
const banji={
name:"终极一班",
stus:[
"一班",
"二班",
"三班",
"四班",
],
[Symbol.iterator](){
let index=0;
return{
next:()=>{
if(index<this.stus.length){
const result ={value:this.stus[index],done:false};
index++;
return result;
}else{
return {value:undefined,done:true}
}
}
}
}
}
for(let v of banji ){
console.log(v);
}
</script>
</html>