js學習心得

function test() {
        var s = "";
        for (var i = 0; i < arguments.length; i++) {
            alert(arguments[i]);
            s += arguments[i] + ",";
        }
        return s;
    }
test("name", "age")

//arguments獲取函數方法裏的參數得到數組

var txt="";
var obj={name:"john",age:"18"}
for(var x in obj)
{
 txt=txt+obj[x];
}
document.write(txt);

//x獲取obj對象裏的屬性