英文文档: sorted(iterable[, key][, reverse]) Return a new sorted list from the items in iterable. Has two optional arguments which must be specified as keyword arguments. key specifies a function of one argument that is used to extract a comparison key f…
英文文档: open(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True, opener=None) Open file and return a corresponding file object. If the file cannot be opened, an OSError is raised. file is either a string or bytes objec…
英文文档: sorted(iterable[, key][, reverse]) Return a new sorted list from the items in iterable. Has two optional arguments which must be specified as keyword arguments. key specifies a function of one argument that is used to extract a comparison key f…