我正在嘗試使第一個(gè)函數(shù) opt1() 使健康下降 50 點(diǎn)，但是由于某種原因它不起作用。該代碼在不在函數(shù)中時(shí)有效。不起作用的行： health = int(health) - 50import randomhealth = "100"p = "1"def opt1():   print("Du f?rlorade striden")   health = int(health) - 50   print(health)def opt2():   print("hej2")def opt3():   print("hej3")q = [opt1, opt2, opt3]ind = random.randint(0,len(q)-1)print("you have ", p, " potions")print("Your health is ", health,)while True:   print("Commands: Add, drink, sleep, fight, quest")   a = input("Enter a command: ")   if a == "add":       health = int(health)       p = int(p) + 1       print("you have ", p, " potions")       print("Your health is ", health,)   if a == "fight":       q[ind]()