git clone错误

问题：

warning: http.proxy has multiple values

方法：

git config --global --unset-all  http.proxy

成功：

Cloning into 'kmeans'...
remote: Counting objects: 7, done.
remote: Total 7 (delta 0), reused 0 (delta 0), pack-reused 7
Unpacking objects: 100% (7/7), done.
Checking connectivity... done.