廖雪峰python教程: http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000
简明python教程:
http://www.kuqin.com/abyteofpython_cn/index.html
菜鸟教程:
http://www.runoob.com/python/python-tutorial.html
知乎:
https://www.zhihu.com/question/20039623