不懂就问：

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#1 Created at ... [Delete] [Delete and Lock User]

>>> args = (1, 2, 3, 4)
>>> kw = {'d': 99, 'x': '#'}
>>> f1(*args, **kw)
a = 1 b = 2 c = 3 args = (4,) kw = {'d': 99, 'x': '#'}

这里传入（1，2，3，4）为啥args=（4，）？本来以为打错了，自己试了一下还真是有个“，”在里面

#2 Created at ... [Delete] [Delete and Lock User]

同问

#3 Created at ... [Delete] [Delete and Lock User]

是不是和tuple那一样，加了个，以区分数学表达式

#4 Created at ... [Delete] [Delete and Lock User]

传入的args是个tuple，只有一个值的tuple就是这么表达的