摘要： Evernote Export body, td { font family: 微软雅黑; font size: 10pt; } 为构建你自己的UI，安卓提供了一个成熟的强大的组件化模型，基于View和ViewGroup这两个基类。在一开始，你可以用一些预建的View和ViewGroup子类（即控件 阅读全文

摘要： ###Introduction to Classes```pythonclass Animal(object): #类的声明，括号内填父类，object是最高父类 pass #如果类体暂时为空，则需要填pass作为占位符``````pythonclass Animal(object)... 阅读全文

摘要： ###Iterators for Dictionaries```pythonmy_dict = { "name" : "Zhao", "age" : 13, "gender" : 'male' } print my_dict.items() #.items... 阅读全文

摘要： ###While / elseSomething completely different about Python is the while/else construction. while/else is similar to if/else, but there is a difference... 阅读全文

摘要： ```pythonfrom random import randint #用来产生随机数board = []for x in range(5): board.append(["O"] * 5) # ['O'] * 5 即['O','O','O','O','O'] ，对board列... 阅读全文

摘要： ```pythonlloyd = { "name": "Lloyd", "homework": [90.0,97.0,75.0,92.0], "quizzes": [88.0,40.0,94.0], "tests": [75.0,90.0]}alice = { "nam... 阅读全文

摘要： ###Python Lists ```pythonsuitcase = [] suitcase.append("sunglasses")# Your code here!suitcase.append("hat")suitcase.append("dress")suitcase.append("ce... 阅读全文

摘要： ```python def hotel_cost(nights): return 140 * nights def plane_ride_cost(city): if city == 'Charlotte': return 183 elif city=='Tam... 阅读全文

摘要： 学习python的一些记录 阅读全文