js遍历对象的属性并且动态添加属性

?var?person=?{????name:?'zhangsan',????pass:?'123'?,????'sni.ni'?:?'sss',????hello:function?(){???????for(var?i=0;i<arguments.length;i++){???????????????//在不知参数个数情况下可通过for循环遍历???????????????????????????//?arguments这个是js?默认提供??????????????alert("arr["+i+"]="+arguments[i]);???????}????????}???}??????//遍历属性???for(var?item?in?person){??????if(typeof?person[item]??===?'string'){????????alert("person中"+item+"的值="+person[item]);??????}else?if(typeof?person[item]?===?'function'){??????????person[item](1,1);//js?的function的参数可以动态的改变??????}????}??//添加属性?????person.isMe?=?'kaobian';?//?这种是属性名字正常的??//当属性名字不正常时，像下面这种，必须用这种形式的，???person['isMe.kaobian']?=?'hello?kaobian';?//上面的也可以用下面的形式?????for(var?item?in?person){??????if(typeof?person[item]??===?'string'){????????alert("person中"+item+"的值="+person[item]);??????}else?if(typeof?person[item]?===?'function'){????????????person[item](1,1);??????}????}???

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