tensorflow安装错误：Could not find a version that satisfies the requirement tensorflow 解决

错误：
C:\Users\liuh>pip install tensorflow==1.11.0
ERROR: Could not find a version that satisfies the requirement tensorflow==1.11.0 (from versions: none)
ERROR: No matching distribution found for tensorflow==1.11.0
解决：tensorflow么有__version__方法，打开Python解释器看下，

import tensorflow
tensorflow.__version__

pip uninstall tensorflow==1.13.1
pip install tensorflow==1.13.1

等待安装完成后，校验OK，解决了~