数组的定义
var arr = [1, 2, 3, 4, "one", "two", "three", "four"]; //一维数组
var props = [["拳头", "刀", "枪"], ["boxing", "knife ", "gun"]]; //二维数组
调用
console.log(arr[0]);
console.log(props[0][0]);
for (var i in arr) {//可能性不高 console.log(arr[i]); } for (var i = 0; i < arr.length; i++) { //性能差的 console.log(arr[i]); } for (var i = 0, max = arr.length; i < max; i++) {//性能好的 console.log(arr[i]); }
var data = new Array();
var datas = new Array();
for( i=0; i<3; i++)
{
data = [1,2,3]
datas.push(data);
}
console.log(datas);
[[1, 2, 3], [1, 2, 3], [1, 2, 3]]
原文：http://www.cnblogs.com/skybady/p/3640874.html