Rayvin的博客

摘要： 1. print 是调试时的有用工具2. aliasing bug: 1 # x is a list 2 temp = x 3 temp.inverse() 4 """ 5 调用temp.inverse()时 也会改变x的值 6 相当于同时调用了x.inverse() 7 因为 temp和x指向了... 阅读全文

摘要： http://delay-tolerant-networks.blogspot.ca/p/one-tutorial.html 阅读全文

摘要： 1. dict represents a dictionary use dict.get('e',0) instead of dict['e'] to get the value of 'e' if you are not sure that 'e' is included in dict 阅读全文