在用pip install py-stringsimjoin的时候报错error: INCLUDE environment variable is empty,后来在网上搜索下了说是需要下载安装VCForPython27.msi,
下载后安装后VCForPython27.msi(下载地址:https://www.microsoft.com/en-us/download/confirmation.aspx?id=44266),重新安装pip install py-stringsimjoin果然成功