python构造函数，,# def __i

python构造函数，,# def __i

#    def __init__(self):#        self.data = []#When a class defines an __init__() method, class instantiation automatically #invokes __init__() for the newly-created class instance. So in this example, a new, #initialized instance can be obtained by:#x = MyClass()# __init__() method may have arguments, arguments given to the class instantiation # operator are passed on to # __init__(). For example,class Complex:     def __init__(self, realpart, imagpart):         self.r = realpart         self.i = imagpartx = Complex(3.0, -4.5)print x.r, x.i