为什么 output 在输入为 18 时会打印“Not Wierd”？

Question

Why the output is printed "Not Wierd" When the input is 18?

if __name__ == '__main__':
    n = int(input().strip())
    if(n%2==0):
        if(range(2,5)):
            print("Not Weird")
        elif(range(6,20)):
            print("Weird")
        elif(n>20):
            print("Not Weird")
    else:
        print("Weird")

Answer 1

Use n in range(...) to see if n is within range.

Answer 2

Issue is with your use or range() , which returns an iterable, which is a truthy value (if it's not empty), hence your first conditional always being true.

Update it so you are checking if your number is inside the iterable returned by range()

...
if(n in range(2,5)):
...