目录安装mysql数据库下载wget命令下载MySQL安装包安装MySQL安装MySQL服务安装完成后启动mysql服务获取MySQL临时密码允许远程访问数据库总结前几日在虚拟机上面安装自己的MySQL数据库，中间遇到了很多问题，不管是不能
In C (or C++ for that matter), pointers are special if they have the value zero: I am adviced to set pointers to zero after freeing their memory, because it means freeing the pointer again isn\'t dang
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