如何在Python中使用max函数？

Question

num = request.GET.get("num",20)

By default, the num is 20. But, if the user passes in 100, how can I set num to 50? (the max that I allow?)

Answer 1

Just add one more line:

num = int(request.GET.get("num", 20))
if num > 50:
    num = 50

Or, if you want to use min you could write:

# "num" parameter assumed to be convertable to an `int`
num = min(int(request.GET.get("num", 20)), 50)

Answer 2

Actually, you should use min rather than max :

num = int(request.GET.get("num", 20))
num = min(num, 50)