js 学习之路8：for循环

1. for循环

<!DOCTYPE html>
<html>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<body>

<script charset = "utf-8">

nameList = ["kl", "td", "mgeno", "bobo"];
for (var i = 0; i < nameList.length; i++)
{
    document.write(nameList[i] + "<br>");
}
</script>

</body>
</html>

结果：

 

2. for/in循环直接遍历循环对象的属性。

<!DOCTYPE html>
<html>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<body>

<script charset = "utf-8">

var manInfo = {name: "tim", age: 20, grade: 98};
for (var i in manInfo)
{
    var info = i + ": " + manInfo[i];
    document.write(info + "<br>");
}

</script>

</body>
</html>

结果：

 

posted @ 2019-01-29 10:35  正态分个布  阅读(443)  评论(0)  编辑  收藏  举报