JavaScript 实例:创建一个欢迎 cookie
发布网友
发布时间：2023-08-19 19:33
共1个回答
热心网友
时间：2023-09-19 08:07
[code]
html
head
script type="text/javascript"
function getCookie(c_name)
{
if (document.cookie.length0)
{
c_start=document.cookie.indexOf(c_name + "=")
if (c_start!=-1)
{
c_start=c_start + c_name.length+1
c_end=document.cookie.indexOf(";",c_start)
if (c_end==-1) c_end=document.cookie.length
return unescape(document.cookie.substring(c_start,c_end))
}
}
return ""
}
function setCookie(c_name,value,expiredays)
{
var exdate=new Date()
exdate.setDate(exdate.getDate()+expiredays)
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : "; expires="+exdate.toGMTString())
}
function checkCookie()
{
username=getCookie('username')
if (username!=null
username!="")
{alert('Welcome again '+username+'!')}
else
{
username=prompt('Please enter your name:',"")
if (username!=null
username!="")
{
setCookie('username',username,365)
}
}
}
/script
/head
body onLoad="checkCookie()"
/body
/html
[/code][button value="复制代码"]
