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在星期八我没有姓名

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if Student.count != 0:    print('测试失败!')else:    bart = Student('Bart')    if Student.count != 1:        print('测试失败!')    else:        lisa = Student('Bart')        if Student.count != 2:            print('测试失败!')        else:            print('Students:', Student.count)            print('测试通过!')if Student.count != 0:    print('测试失败!')else:    bart = Student('Bart')    if Student.count != 1:        print('测试失败!')    else:        lisa = Student('Bart')        if Student.count != 2:            print('测试失败!')        else:            print('Students:', Student.count)            print('测试通过!')

每生成一个新的实例，__init__执行一次

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