面向对象封装案例2-士兵突击

class Gun:
    def __init__(self,model):
        self.model=model
        self.bullet_count=0
    def add_bullet(self,count):
        self.bullet_count += count
    def shoot(self):
        if self.bullet_count <= 0:
            print("[%s] 没有子弹了..."%self.model)
            return
        self.bullet_count -= 1
        print("%s 发射子弹突突突...剩余子弹:%d"%(self.model,self.bullet_count))

class Soldier:
    def __init__(self,name):
        self.name=name
        self.gun=None
    def fire(self):
        if self.gun is None:
            print("[%s] 还没有枪"%self.name)
            return
        print("冲啊！%s"%self.name)
        self.gun.add_bullet(100)
        self.gun.shoot()

ak47=Gun("AK47")
xusanduo=Soldier("许三多")
xusanduo.gun=ak47
xusanduo.fire()
print(xusanduo.gun)