JS【For/in】 

 1 <script>
 2 function myFunction(){
 3     var x;
 4     var txt="";
 5     var person={fname:"Bill",lname:"Gates",age:56}; 
 6     for (x in person){
 7         txt=txt + person[x];
 8     }
 9     document.getElementById("demo").innerHTML=txt;
10 }
11 </script>
for/in (对象)

 

posted @ 2018-08-01 21:58  Justice-V  阅读(85)  评论(0)    收藏  举报