js 循环出对象的 属性 和值 for in

var obj={"name":"wjy","age":26,"sex":"female"};//定义一个object对象
var keys=[];//定义一个数组用来接受key
var values=[];//定义一个数组用来接受value
  for(var key in obj){
    keys.push(key);
    values.push(obj[key]);//取得value 
    alert(eval("obj."+key));//循环内逐一打印value值
    }
alert(obj.name);//wjy
alert("keys is ："+keys+" and values is ："+values);
//keys is : name,age,sex and values is : wjy,26,female 

 for (var i in data.data_info) { 
    console.log(data.data_info[i]);
    console.log(i);
};