为什么会出现这种结果

Question

playerlevel = 1
playerattack = 10
playerhealth = 100
playerexp = 0

print (playerlevel)
answer = input('have you played before? yes or no: ')
if answer == 'yes':
    level = input('what was your level: ')
    playerlevel *= level
    playerattack *= level
playerhealth *= level
else:
    pass

print ("player level: %s" % playerlevel)
print ("player health: %s" % playerhealth)
print ("player attack: %s" % playerattack)
print ("player exp: %s" % playerexp)

当我运行这个程序时，它会运行玩家级别，如果级别为2，它会打印2，但其他的会打印->；每人222222222222222。对于它的0

Answer 1

level = input('what was your level: ')

input返回字符串*。当你把一个字符串乘以一个整数时，你会让这个字符串重复那么多次。例如，"2" * 3就是"222"

如果您想要实际的数字乘法，请在使用前将级别转换为整数

level = int(input('what was your level: '))

_{*仅适用于Python 3.Xinput可以返回2.7及更低版本中的其他类型，但在这些版本中应该使用raw_input。}