因为前面有个空格<HTML>
<HEAD>
<title>cookietest </title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<script language="javascript">
function ct()
{
document.cookie="a=aaa";
document.cookie="b=bbb";
document.cookie="c=cccc";
var cookiestr=document.cookie;
window.alert(cookiestr);
var arr=cookiestr.split(";");
//alert(arr[1]);
var len=arr.length;
var maparr;
var tmp;
var k;
for(var i=0;i <len;i++)
{
tmp=arr[i];
maparr=tmp.split("=");
k=maparr[0];
alert("**"+k+"**");
if(k=="c")
{
alert(maparr[0]+"===="+maparr[1]);
} tmp='';
k='';
map=null;
}
}
</script>
</HEAD> <body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<input type="button" value="test" onclick="ct()">
</form>
</body>
</HTML>
<HEAD>
<title>cookietest </title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<script language="javascript">
function ct()
{
document.cookie="a=aaa";
document.cookie="b=bbb";
document.cookie="c=cccc";
var cookiestr=document.cookie;
window.alert(cookiestr);
var arr=cookiestr.split(";");
//alert(arr[1]);
var len=arr.length;
var maparr;
var tmp;
var k;
for(var i=0;i <len;i++)
{
tmp=arr[i];
maparr=tmp.split("=");
k=maparr[0];
alert("**"+k+"**");
if(k=="c")
{
alert(maparr[0]+"===="+maparr[1]);
} tmp='';
k='';
map=null;
}
}
</script>
</HEAD> <body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<input type="button" value="test" onclick="ct()">
</form>
</body>
</HTML>
document.cookie="b=bbb"; 是第一句,则if(k=="b") 成立;
强烈迷惑
<script language=jscript>
var str=" aa a "
var result=str.replace(/((^\s+)|(\s+$))/g,"")
alert("**"+result+"**")
</script>