//创建一个数组
var arr = ["孙悟空","猪八戒","沙和尚","唐僧","白骨精"];
//所谓的遍历数组，就是将数组中所有的元素都取出来
/*console.log(arr[0]);
console.log(arr[1]);
console.log(arr[2]);
console.log(arr[3]);*/
for(var i=0 ; i<arr.length ; i++){
console.log(arr[i]);
}
原文：https://www.cnblogs.com/xt888/p/12683801.html