python析构函数

python析构函数

#!/user/bin/python
#-*-coding:UTF-8-*-
from __future__ import print_function  # 兼容python2.x和python3.x的print语句
 
class Fruit(object):
    def __init__(self,color):# 初始化属性__color
        self.__color = color
        print(self.__color)
 
    def __del__(self):# 析构函数
        self.__color = ""
        print("free...")
     
    def grow(self):
        print("grow...")
 
if __name__=="__main__":
    color = "red"
    fruit = Fruit(color)
    fruit.grow（）

参考：https://baike.baidu.com/item/%E6%9E%90%E6%9E%84%E5%87%BD%E6%95%B0/9483718?fr=aladdin