This comprehensive guide explores Python's __repr__ method, the special method that returns the official string representation of an object. Basic DefinitionsThe __repr__ method returns a string representation o
A class can control what this function returns for its instances by defining arepr() method. class Node(object): def __init__(self, value, flag = 1): self._value = value self._children = [] self._flag = flag def add_child(self, node): self._children.append(node) def __repr_...
问Python方法:编写一个等效的__repr__？EN更接近的实现将使用toString方法。当需要转换到字符串时，将...
python中__str__和__repr__ 如果要把一个类的实例变成 str,就需要实现特殊方法__str__(): class Person(object): def __init__(self, name, gender): self.name = name self.gender = gender def __str__(self): return '(Person: %s, %s)' % (self.name, self.gender)现在,在交互式命令行...
Python__repr__()function returns the object representation in string format. This method is called whenrepr()function is invoked on the object. If possible, the string returned should be a valid Python expression that can be used to reconstruct the object again. ...
A class can control what this function returns for its instances by defining a__repr__()method. 说明: 1. 函数功能返回一个对象的字符串表现形式。其功能和str函数比较类似,但是两者也有差异:函数str() 用于将值转化为适于人阅读的形式,而repr() 转化为供解释器读取的形式。
the representation is a string enclosed in angle brackets that contains the name of the type of the object together with additional information often including the name and address of the object. A class can control what this function returns for its instances by defining a__repr__()method. ...
This method differs from object.repr() in that there is no expectation that str() return a valid Python expression: a more convenient or concise representation can be used. The default implementation defined by the built-in type object calls object.repr().有...
Python中所有的内置类型对象的__repr__()方法都是通过调用其对应的C语言层面的函数来实现的。这些函数通常位于Python解释器的内部实现中,而不是在Python源代码中。 例如,对于整数类型int,其__repr__()方法的实现位于Python解释器的C语言源代码中,对应的函数是int_repr()。当你在Python代码中调用repr(42)...
Python classes 有一些 special methods (特殊方法)。这些方法的名称以双下划线开头和结尾。你也可以通俗地称之为 dunder method(双下划线方法)因为它们的名字里有双下划线。 .__repr__() 和.__str__() 特殊方法都返回对象的字符串表示。字符串表示是一个展示了对象信息的字符串。你可以为不同的受众定制信息,...