// 快速的代码
var array = [0,1,2,3,4,5,6,7,8,9];
// for 循环 var length = array.length; for (var i=0; i < length; i++) { // 快速的代码
var array = [0,1,2,3,4,5,6,7,8,9];
// for 循环 var length = array.length; for (var i=0; i < length; i++) {