Python: 初学python类
May 25, 2015
#coding:utf-8 ################# # 练习应用类 ################# class Test: def __init__(self, name): self.name = name x = Test(1) print x.name # 这里尝试输出‘你好’————把第十行改成:x = Test(u'你好') ################### class TestVarible: samething = 'Hello Word.' # 共享的变量 def __init__(self, name): self.name = name # 每个实例独一无二的变量 one = TestVarible('one') two = TestVarible('two') print 'one:',one.name, ';Same thing:', one.samething print 'two:',two.name, ';Same thing:', two.samething ################### class TestError: tricks = [] #正确的应该是把这句移动__init__函数中或者add_tricks函数中 # def __init__(self): # def add_tricks(self,stuff): self.tricks.append(stuff) dog1 = TestError() dog1.add_tricks('dog1') dog2 = TestError() dog2.add_tricks('dog2') print dog1.tricks,'\n----------' print dog2.tricks # 输出之而后你会发现tricks是共享的列表,对象的数据变成共享的了 # 这里需要注意的是:类中属性名和方法名要区别开否则会出现很难发现的错误 # 再次声明命名约定可以避免很多麻烦。 ####################
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