你可以采取的argument/keyword argument unpacking优势,支持动态变化的功能参数。和产生功能也在工厂函数/类,你需要:
def create_character(required1, required2, *opt_args, **kwargs):
""" create_character must always be called with required1 and required2
but can receive *opt_args sequence that stores arbitrary number of
positional args. kwargs hold a dict of optional keyword args """
for i, pos_arg in enumerate(opt_args):
# pos_arg walks opt_args sequence
print "position: {}, value: {}".format(i+3, pos_arg)
for keyword, value in kwargs:
print "Keyword was: {}, Value was: {}".format(keyword, value)
pos_args = (1,2,3)
create_character('this is required','this is also required', *pos_args)
""" position: 3, value: 1
position: 4, value: 2
position: 5, value: 3 """
a_dict = {
'custom_arg1': 'custom_value1',
'custom_arg2': 'custom_value2',
'custom_arg3': 'custom_value3'
}
create_character('this is required','this is also required', **a_dict)
""" Keyword was: custom_arg2, value: custom_value2
Keyword was: custom_arg3, value: custom_value3
Keyword was: custom_arg1, value: custom_value1 """
韦尔普,找到所有+全部替换是一个开始... –
我的问题字面上问是否有替代这个。 –