python 方法属性化，限制属性@property,@x.setter 个人所写

class Student(object): @property # 函数属性化 def score(self): # 获取属性 return self._score # 返回处理后的属性值，一定要有_@score.setter # 设置属性 def score(self, value): if not isinstance(value, int): #判断value类型 try: raise ValueError('score must be an integer!') # 主动抛出异常 except ValueError as e: self._score = e elif value < 0 or value > 100: try: raise ValueError('score must between 0 ~ 100!') except ValueError as e: self._score = e elif 0<=value<=100 and isinstance(value,int): self._score = values = Student() s.score=9999 # 先运行setter,修饰限定score的属性 print(s.score) # 最终得到的值 s.score ='jk' print(s.score)

【python 方法属性化，限制属性@property,@x.setter】上面的修改，直接让输入的数值在0~100之间：

class Student():# 默认object，可以没有括号 @property def score(self): return self._score@score.setter def score(self,grade): if not isinstance(grade,int): # 必须先判断数值类型 try: raise TypeError("score must be an integer") except TypeError as e: self._score = e elif grade<0: self._score = 0 elif grade > 100: self._score = 100 elif 0<=grade<=100: self._score = grades = Student() s.score = 1000 print(s.score)