Pip 安装 报错 Could not find a version that satisfies the requirement
方法:在shell中输入importpip;print(pip.pep425tags.get_supported())可以获取到pip支持的文件名还有版本PSC:\Users\Administrator>pythonPython3.7.0a2(v3.7.0a2:f7ac4fe,Oct172017,16:23:57)[MSCv.190032bit(Intel)]onwin32Type"help","