JS中，怎样用for..in来输出二维数组？

Question

如题所述

Answer 1

var week=[["周一","周二","周三","周四","周五","周六","周日"],["吃饭","睡觉","学习"]]
for (var i = 0; i < week.length; i++) {
for (var j = 0; j < week[i].length; j++) {
document.write(week[i][j]+"<br>")
}
}

Answer 2

3: var myArray = new Array(3);
4: myArray[0] = “Item 0”;
5: myArray[1] = “Item 1”;
6: myArray[2] = “Item 2”;
7: for (i = 0; i < myArray.length; i++) {
8: document.write(myArray[i] + “<br>”);
9: }本回答被网友采纳

Answer 3

你搞两次不久OK了