A simple and detailed explanation on the problem of text line wrapping in the alert pop-up window in js_Basic knowledge

1. Pop-up window in js file:

<script type="text/javascript"> 
$(document).ready(function () { 
alert("Hello \r\n Javascript!"); 
alert("Hello \n Javascript!"); 
}); 
</script>

2. In. The js pop-up window spliced ​​in the background of the cs page

LiteralResult.Text = string.Format("<script>alert(&#39;添加成功！\ 您已选择赠送{0}（积分：{1}分）&#39;);location.href=http://www.hake.cc/kf/201111/&#39;VIPList.aspx&#39;</script>", strGift, jifen);

Please use "n"
If this is not possible, then " \n"
For example:

<script type="text/javascript">alert("hello \n world!");</script>