http://www.pythontab.com/ Python开发者门户 http://www.liaoxuefeng.com/ https://docs.python.org/3/library/functions.html Python官方文档 http://www.w3cschool.cc/python/att-string-index.html http://www.cnblogs.com/yuxc/category/307122.html http://www.cnblogs.com/itech/archive/2011/01/28/1945273.html 常用的模块 http://blog.youkuaiyun.com/column/details/py-data-analysis.html