var obj = {"name1":"張三","name2":"李四"};
var key = "name1";
var value = obj.key;//得到了"undefined"
value = obj.name1;//得到了"張三"

function printObject(obj){
//obj = {"cid":"C0","ctext":"區縣"};
var temp = "";
for(var i in obj){//用javascript的for/in循環遍歷對象的屬性
temp += i+":"+obj[i]+"/n";
}
alert(temp);//結果：cid:C0 /n ctext:區縣
}