如何在达到负值后自动将数字更改为零？

Question

while opponentHealth >= 0 or userHealth >= 0:

        userInput = input()

        if userInput == "attack":
            opponentOne = "Larry"
            userDamage = random.randint(0, 100)
            opponentDamage = random.randint(0, 20)
            opponentHealth = opponentHealth - userDamage

            if(userDamage < 25) and (userDamage > 0):
                print("You roundhouse kick {} in the abdomen and he begins to vomit." .format(opponentOne) or "You punch {} in the stomach and he begins to tear up." .format(opponentOne))
                print("You did {} damage to him" .format(userDamage))
                print("He has {} health remaining." .format(opponentHealth))

            elif(userDamage < 100) and (userDamage > 25):
                print("You drive your foot into {}'s groin with as much force as possible. You hear a high-pitched scream emit from his vocal chords." .format(opponentOne) or "{} is intimidated by you and decides to slap himself mindlessly, in hopes that he will lose faster." .format(opponentOne))
                print("You did {} damage to him; a CRITICAL HIT!" .format(userDamage))
                print("He has {} health remaining." .format(opponentHealth))
            elif userDamage == 100:
                print("{} forfeits... Coward." .format(opponentOne))
                print("You did {} damage to him. INSTANT K.O" .format(userDamage))
                print("He has {} health remaining." .format(opponentHealth))
            else:
                print("Swing and a miss. You missed {}." .format(opponentOne) or "You underestimated {}" .format(opponentOne))
                print("You did {} damage to him." .format(userDamage))
                print("He has {} health remaining." .format(opponentHealth))
        else:
            print("Type 'attack' to attack.")
    continue

所以这基本上是我正在尝试制作的迷你格斗游戏（有史以来第一个程序，除了 "Hello World" 哈哈）。每当变量 opponentHealth 变成负数时，我希望它自动变成 0。例如，与其说 "He has -13 health remaining."，不如说 "He has 0 health remaining." 有什么建议吗？

提前致谢！

Answer 1

opponentHealth = opponentHealth - userDamage
if opponentHealth < 0:
    opponentHealth = 0

Answer 2

无论什么时候给opponentHealth赋值，取最大值0即可。例如：

opponentHealth = max(0, opponentHealth - userDamage)

如何在达到负值后自动将数字更改为零？

How to automatically change a number to zero once it reaches a negative value?

python

numbers