英文文档: issubclass(class, classinfo) Return true if class is a subclass (direct, indirect or virtual) of classinfo. A class is considered a subclass of itself. classinfo may be a tuple of class objects, in which case every entry in classinfo will be c…
英文文档: issubclass(class, classinfo) Return true if class is a subclass (direct, indirect or virtual) of classinfo. A class is considered a subclass of itself. classinfo may be a tuple of class objects, in which case every entry in classinfo will be c…
英文文档: next(iterator[, default]) Retrieve the next item from the iterator by calling its __next__() method. If default is given, it is returned if the iterator is exhausted, otherwise StopIteration is raised. 返回可迭代对象中的下一个元素值 说明: 1. 函数必须接收一个可迭代对象参数,每次调…
使用Python内置函数:bin().oct().int().hex()可实现进制转换. 先看Python官方文档中对这几个内置函数的描述: bin(x)Convert an integer number to a binary string. The result is a valid Python expression. If x is not a Python int object, it has to define an __index__() method that returns a…
使用Python内置函数:bin().oct().int().hex()可实现进制转换. 先看Python官方文档中对这几个内置函数的描述: bin(x)Convert an integer number to a binary string. The result is a valid Python expression. If x is not a Python int object, it has to define an __index__() method that returns a…
英文文档: class str(object='') class str(object=b'', encoding='utf-8', errors='strict') Return a string version of object. If object is not provided, returns the empty string. Otherwise, the behavior of str()depends on whether encoding or errors is given…
英文文档: class str(object='') class str(object=b'', encoding='utf-8', errors='strict') Return a string version of object. If object is not provided, returns the empty string. Otherwise, the behavior of str() depends on whether encoding or errors is give…
[转]实习小记-python 内置函数__eq__函数引发的探索 乱写__eq__会发生啥?请看代码.. >>> class A: ... def __eq__(self, other): # 不论发生什么,只要有==做比较,就返回True ... return True ... >>> a = A() >>> b = A() >>> a == b True >>> a != b # 这个地方为什么会返回False?…