复制代码 代码如下:
var cookiename = cookie名字;
var cookievalue = null;//返回cookie的value值
if (document.cookie && document.cookie != '') {
var cookies = document.cookie.split(';');//将获得的所有cookie切割成数组
for (var i = 0; i var cookie = cookies[i];//得到某下标的cookies数组
if (cookie.substring(0, cookiename.length + 2).trim() == cookiename.trim() + =) {//如果存在该cookie的话就将cookie的值拿出来
cookievalue = cookie.substring(cookiename.length + 2, cookie.length);
break
}
}
}
if (cookievalue != && cookievalue != null) {//如果存在指定的cookie值
alert(cookievalue);
} else {//如果cookie的值是空
alert(not cookie!!!);
}
复制代码 代码如下:
//去除空格
string.prototype.trim = function () {
return this.replace(new regexp((^[\\s]*)|([\\s]*$), g), );
}