Normally, if I want to find whether the key exists in map STL(C++), the first thing come up to my mind is if(map1[key1]). However, this is wrong, because if there is no key equals to key1, map1[key1] will return 0 and if there is a key1 but its value is 0, then it will also return 0; So this method is not feasible.

Sometimes we want to write something that we don't want all the web users to read. And the way we add password at is no safe. So we can use hexo plugin hexo-blog-encrypt to set password for our post.

Get a star function to your blog or webpage so that reader can give feedbacks to your article.

Every time I use git to commit to my repository, I need to type my username and keys. So how can I get rid of it?

I want to add a share function to my blog. So that readers can share my articles easily. I use a plugin Share.js. Even though this project has been not maintained for long, it’s still can be used.

This article records my experience of using the hexo related popular posts plugin. And how to modify the plugin to make it suitable for my theme.

While installing and using the Hexo Plugin [hexo-related-popular-posts], I ran Into a problem. I got an error after Hexo s. The followings are the details

前面我们知道了，高速缓冲存储器在整个存储系统当中的视图及其功能，和构建高速缓冲存储器的理论（局部性原理）。

Valine is a comment system for blog or something else. It uses leancloud to store the message. And the tougher valine has a function that can reply the comment by email and locate to a certain page.

存储系统是指计算机中由存放程序和数据的各种存储设备、控制部件及管理信息调度的设备（硬件）和算法（软件）所组成的系统。计算机的主存储器不能同时满足存取速度快、存储容量大和成本低的要求，在计算机中必须有速度由慢到快、容量由大到小的多级层次存储器，以最优的控制调度算法和合理的成本，构成具有性能可接受的存储系统。

学习计算机网络这门课，由于是网络视频授课，效果不佳，容易忘记，便总结课堂笔记。

学习计算机网络这门课，由于是网络视频授课，效果不佳，容易忘记，便总结课堂笔记。