未设置path时,为以下状态, 导致却换页面的时候cookie失效,
document.cookie = "noticebombox=1";
设置path为根目录
document.cookie = "noticebombox=1" + "; path=/";
![](https://images2018.cnblogs.com/blog/1018844/201809/1018844-20180906221601357-92065644.png)
未设置path时,为以下状态, 导致却换页面的时候cookie失效,
document.cookie = "noticebombox=1";
设置path为根目录
document.cookie = "noticebombox=1" + "; path=/";
![](https://images2018.cnblogs.com/blog/1018844/201809/1018844-20180906221601357-92065644.png)