NULL on error. Even in case of error, the* list will be some permutation of its input state (nothing is lost or* duplicated).*//*[clinic input]list.sort*key as keyfunc: object = Nonereverse: bool = FalseSort the
whereas the thesorted_builtinfunction first loads the built-insortedfunction, followed by loading the list and calling the loaded function with the list as argument.
该函数返回None,表明对原对象做修改。 Python中API的不成文的规定:标明返回None的函数,表明对该对象原地(in place)修改,即修改原对象,无新对象产生。但这样也有一个缺点:无法串联使用。比如,无法这样编写代码:(list.sort).sort sorted Built-in Function 相反,内置的sorted函数可以创造并返回一个新的list。其实sor...
AI代码解释 >>># Python3>>>help(sorted)Help on built-infunctionsortedinmodule builtins:sorted(iterable,/,*,key=None,reverse=False)Return anewlistcontaining all items from the iterableinascending order.Acustom keyfunctioncan be supplied to customize the sort order,and the reverse flag can besett...
You can also construct a SortedKeyList using the SortedList type by passing a key-function to the initializer. >>> from sortedcontainers import SortedList >>> values = SortedList([1, 2, 3, 4, 5], key=neg) >>> values SortedKeyList([5, 4, 3, 2, 1], key=<built-in function neg...
dispersed on the surface of the transfer to the downstream end of the conveyor belt mechanism by feeding mechanism, and sorting conveying surface, the conveying belt mechanism is inclined toward the downstream direction, to avoid transporting grain roll in the upstream direction on the conveying ...
A custom key function can be supplied to customize the sort order, and the reverse flag can be set to request the result in descending order.像操作列表一样,sorted()也可同样地用于元组和集合:>>> numbers_tuple = (6, 9, 3, 1) >>> numbers_set = {5, 5, 10, 1, 0} >>> numbers_...
>>> from operator import neg >>> skl = SortedKeyList(key=neg) >>> skl SortedKeyList([], key=<built-in function neg>) >>> skl = SortedKeyList([3, 1, 2], key=neg) >>> skl SortedKeyList([3, 2, 1], key=<built-in function neg>) Parameters: iterable –initial values (op...
A custom key function can be supplied to customize the sort order,andthe reverse flag can be set to request the resultindescending order.>>> 2.参数说明 iterable 可迭代对象,如:str、list、tuple、dict都是可迭代对象(这里就不局限于list了) ...
>>> chr(99)'c' >>> chr(98)'b' classmethod(function):返回函数的类方法。 compile(source, filename, mode, flags=0, dont_inherit=False, optimize=-1):把字符串编译成python可执行的代码。 >>> str="print('lady')" >>> a=compile(str,'','eval')>>>eval(a) ...