例：
class Circle:
__radius=0
def __init__(self,radius):
self.__radius=radius
def getRadius(self):
return self.__radius
def __add__(self,pther)
return Circle(self.__radius+other.__radius)
c1=Circle(12)
c2=Circle(9)
c3=c1+c2 #相加时，会自动调用上面定义的__add__方法
print(c3.getRadius()) #21其他操作符重载
| 运算符 | 方法名 | 说明 |
| + | __add__(self，other) | 加 |
| - | __sub__(self，other) | 减 |
| * | __mul__(self，other) | 乘 |
| / | __truediv__(self，other) | 除 |
| < | __lt__(self，other) | 小于 |
| > | __gt__(self，other) | 大于 |
| <= | __le__(self，other) | 小于等于 |
| >= | __ge__(self，other) | 大于等于 |
| == | __eq__(self，other) | 相等 |
| != | __ne__(self，other) | 不等 |
| [] | __getitem__(self，other) | 索引 |
| in | __contains__(self，other) | 包含 |
| len | __len__(self，other) | 个数 |
| str() | __str__(self，other) | 转为字符串 |
版权声明：本文为xcxhzjl原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。