输入错误时，如何再次请求相同的输入？

Question

players = input("How many players?")
if players == "1":
    p1 +=1
elif players == "2":
    p2 +=1
else:
    print("Invalid Input")
    players = input("How many players?")

输入无效的输入后，如何使其他重复？

Answer 1

使用无限循环并在输入后break ：

while True:
    players = input("How many players?")
    if players == "1":
        p1 += 1
        break
    elif players == "2":
        p2 += 1
        break
    else:
        print("Sorry, please pick 1 or 2. Let's try again")