“Win +R”打开cmd终端,如果直接在里面使用pip命令的时候,要么出现“syntax invalid”,要么出现: 'pip' is not recognized as an internal or external command, operable program or batch file. 此时需要将C:\Python27\Scripts添加到系统环境变量,我顺便将C:\Python27\python.exe也添加进了系统环境变量,要保证echo %PATH%能看到对应的目录. 再…