https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000
    学习地址

    工具安装—参考网址
    http://blog.csdn.net/baidu_24256693/article/details/76163534
    http://blog.csdn.net/m53931422/article/details/42489897
    pip3安装超时
    pip3 install requests -i http://pypi.v2ex.com/simple —trusted-host=pypi.v2ex.com
    或
    pip install requests -i http://pypi.douban.com/simple —trusted-host=pypi.douban.com


    部分算法练习
    http://blog.csdn.net/baihuaxiu123/article/details/69789020
    http://blog.csdn.net/walkandthink/article/details/45200597 成功后的例子