#小练习 pickle模块 _ 一起存储python对象

重要内容：

将n个python对象放入一个元组中，一起写入文件，即pickle.dump((shoplist,shoptuple),f)。在读取时，使用多元赋值，读取数据，即：a,b=pickle.load(f)

import pickle as p,pprint

shoplistfile =r'G:\data2.pkl'
#objects
shoplist = ['apple','mango','carrot']
shoptuple = ('fish',1,'chicken',2)

f = open(shoplistfile,'wb')

#存储对象 以元组形式将python对象写入文件
p.dump((shoplist,shoptuple),f)
##p.dump(shoptuple,f)
f.close()
#remove the object
del shoplist
del shoptuple

#读取对象
f = open(shoplistfile,'rb')

a,b = p.load(f) #多元赋值
print a,b  #分别读取python对象

print p.load(f)

#或使用 print p.load(f)  读取python对象元组，与(shoplist,shoptuple)格式一致。