Mysql在安装时可能会遇到一个错误：

1: Action 20:51:31: INSTALL.

1: 1: MySQL Server 5.7 2: {81B27388-3733-4B65-8D84-AD9C9113B498}

1: Action 20:51:31: FindRelatedProducts. Searching for related applications

1: Action 20:51:31: AppSearch. Searching for installed applications

1: Action 20:51:31: LaunchConditions. Evaluating launch conditions

1: This application requires Visual Studio 2013 Redistributable. Please install the Redistributable then run this installer again.

1: 1: MySQL Server 5.7 2: {81B27388-3733-4B65-8D84-AD9C9113B498} 3: 3

1: The action 'Install' for product 'MySQL Server 5.7.20' failed.

报错信息有一句提示到：该应用程序需要Visual Studio 2013 Redistributable。请安装Redistributable并再次运行此安装程序。

点击下载按钮，选择相应版本(我同时装了x64和x86的)，然后打开.exe文件进行安装即可。

重新安装Mysql即可安装成功。