发布时间:2019-09-07 08:03:53编辑:auto阅读(2086)
除了使用 if-elif-else 之外,还可以这样用
def add(a, b):
return a + b
def minus(a, b):
return a - b
def main(mod, a, b):
return {
"add": add(a, b),
"minus": minus(a, b)
}.get(mod, None) # default return is "None", when there is no answer is dict.
if __name__ == "__main__":
print main("add", 1, 2)
print main("minus", 9, 2)
print main("fuck", 9, 2)
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