Question

我是python的新手，但不是编程。 If条件被错误处理，并且'else'部分被打印：

if self.health_points <= -1 and self._foo__is_dead  == False:
    print("Enemy Terminated")
else:
    print("Enemy is  dead")

我打印出2个变量，并且输入'14'时它们的条件为真。仍然，为什么要处理其他部分？拜托，请问我哪里出错了？

class Enemy:
 health_points = 5
 _foo__is_dead = False

 def set_hp(self,points_to_set):
    if self._foo__is_dead == False:
        self.health_points = points_to_set
    else:
        print("Enemy is already dead")

 def attack(self):
    print("Hit confirmed")
    self.health_points -= 1

    if self.health_points <= -1:
        self._foo__is_dead = true

    print(self._foo__is_dead)
    print(self.health_points)

    if (self.health_points <= -1 and self._foo__is_dead  == False):
        print("Enemy Terminated")
    else:
        print("Enemy is  dead")

 #Connected to pydev debugger (build 172.3968.37)
 #Enter hit points for first enemy14
 #Hit confirmed
 #False
 #13


 def reveal_hp(self):
    if self._foo__is_dead == False:
        print(self.health_points, " health points remaining")
    else:
        print("Enemy is already dead")


first_enemy = Enemy()

try:
 one_hp = int(input("Enter hit points for first enemy"))
except ValueError or one_hp > 100:
 print("Enter only numerical values and less than 100")
 exit(0)

first_enemy.set_hp(one_hp)
first_enemy.attack()
first_enemy.reveal_hp()

Answer 1

你还没有正确地思考逻辑。目前你已经设定好了如果敌人没有健康并且没有死亡，那么说他们已经被杀死了。如果没有，说他们已经死了，即使他们还有健康。您只需添加最终检查。

如果您交换它，它应该正常工作：

if (self.health_points <= -1 and self._foo__is_dead  == False):
    print("Enemy Terminated")
else:
    print("Enemy is  dead")

对于这样的事情：

if self.health_points <= -1:
    if not self._foo__is_dead:
        self._foo__is_dead = True
        print("Enemy Terminated")
    else:
        print("Enemy is  dead")
else:
    print("Enemy has {} health remaining".format(self.health_points))

Python如果不执行条件，则仅处理其他条件

1 个答案: