Arryay數組類

創建數組：var aShuzu = new Array();  //項數自動增加，最大4294967295;var aShuzu = new Array(number); //項數number;var aShuzu =["1","2","3"]; 方法大全： var aShuzu =["1","2","3"]; toString()方法//輸出"1,2,3";value