这样可以的.var myArray = new Array();
myArray[0] = new Array();
myArray[1] = new Array();
myArray[2] = new Array();
myArray[0][0] = xxxx;
...
myArray[0] = new Array();
myArray[1] = new Array();
myArray[2] = new Array();
myArray[0][0] = xxxx;
...
var myArray = new Array(['a1','a2','a3','a4'],['c1','c2','c3','c4','c5'],['b1','b2','b3'])
var arr=[[1,2,3],["呵","哈","嘻"],[[3,4,5],"b","c"]]