我找到一个示例，您可以使用
@trace或
@trace('msg1','msg2')：不错！def trace(*args): def _trace(func): def wrapper(*args, **kwargs): print enter_string func(*args, **kwargs) print exit_string return wrapper if len(args) == 1 and callable(args[0]): # No arguments, this is the decorator # Set default values for the arguments enter_string = 'entering' exit_string = 'exiting' return _trace(args[0]) else: # This is just returning the decorator enter_string, exit_string = args return _trace
