var array = new Array(["no1","no2"]);
array["po"] = "props1";
alert(array[0][0]);
alert(array.length); //2
//對于數組來說,array[0]同array["0"]效果是一樣的(?不確定,測試時如此)
alert(array[0] + "_" + array["1"] + "_" + array.po);//