Python报错：'int' object has no attribute 'strengthPts'求助

错误根源 #

你在第12行直接通过superhero类调用了addStrengthPts方法，而不是用已经创建好的实例s来调用。当以类的方式调用实例方法时，Python不会自动传入self参数，你手动传的0被当成了self，但0是整数类型，自然没有strengthPts属性，这就是报错的原因。

具体修正步骤 #

• 调用方法的正确姿势：把superhero.addStrengthPts(0,5)改成s.addStrengthPts(5)。用实例调用方法时，Python会自动把实例s作为self参数传入，你只需要传递points参数即可。
• 修复拼写错误：类的__init__方法里有个笔误——self.strenght = strength多写了一个h，应该改成self.strength = strength，否则后面打印角色能力时会触发属性错误。
• 优化字符串拼接：原打印语句的字符串拼接缺少空格，可读性差还容易出错，建议改用f-string来格式化输出，代码更简洁清晰。

修正后的完整代码 #

class superhero:
    def __init__(self, name = "", strengthPts = 0, motto = "", strength = ""):
        self.name = name
        self.strengthPts = int(strengthPts)
        self.motto = motto
        self.strength = strength  # 修复拼写错误
    def addStrengthPts(self, points):
        self.strengthPts = self.strengthPts + points
def main():
    s = superhero("Señor Cement", 0, "These streets won't stop me!", "creating cement from matter around him and using it to halt villains.")
    s.addStrengthPts(5)  # 改用实例调用方法
    # 用f-string优化输出格式
    print(f"Today on Super of the Week, we present to you {s.name}! After taking down a villain, {s.name} gained {str(s.strengthPts)} points! With their power of {s.strength} and the awesome motto, \"{s.motto}\", you'll definitely want to give their comic a read!")

main()

内容的提问来源于stack exchange，提问作者Star W.