Python使用pickle模块储存对象操作示例

# -*- coding:utf-8 -*-
import pickle
class Person():
  def __init__(self, name, age):
    self.name = name
    self.age = age
  def show(self):
    print(self.name + '_' + str(self.age))
if __name__ == "__main__":
  a = Person('tian', 20)
  a.show()
  c = Person('babydragon' ,5)
  f = open('test.txt', 'wb')#这里一定要加上b,因为文件默认的write不能是bytes类型的，可以自己尝试着删去看报错
  pickle.dump(a, f, 0)
  pickle.dump(c, f, 0)
  f.close()
  f = open('test.txt', 'rb')
  b = pickle.load(f)
  mm = pickle.load(f)
  cc = pickle.load(f)#有点类似于迭代器的感觉，这个就很强了，因为可以储存具体的实例666
  f.close()
  b.show()
  mm.show()
  print(b.name)