1.文件的写入和读取
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Filename: using_file.py
# 文件是创建和读取
s = '''''我们都是木头人，
不许说话不许动！'''
# 创建一个文件，并且写入字符
f = file('test_file.txt', 'w')
f.write(s)
f.close()
# 读取文件，逐行打印
f = file('test_file.txt')
while True:
line = f.readline()
# 如果line长度为0，说明文件已经读完了
if len(line) == 0:
break
# 默认的换行符也读出来了，所以用逗号取代print函数的换行符
print line,
f.close()
执行结果：
我们都是木头人， 不许说话不许动！
2.存储器的写入和读取
#!/usr/bin/python # -*- coding: utf-8 -*- # Filename using_pickle.py # 使用存储器 #加载存储器模块，as后面是别名 #import pickle as p #书上说cPickle比pickle快很多 import cPickle as p listpickle = [1, 2, 2, 3] picklefile = 'picklefile.data' f = file(picklefile, 'w') # 写如数据 p.dump(listpickle, f) f.close() del listpickle f = file(picklefile) # 读取数据 storedlist = p.load(f) print storedlist f.close()
执行结果：
[1, 2, 2, 3]
再来看一个使用cPickle储存器存储对象的例子
#!/usr/bin/python #Filename:pickling.py import cPickle as p shoplistfile = 'shoplist.data' shoplist = ['apple', 'mango', 'carrot'] f = file(shoplistfile, 'w') p.dump(shoplist, f) f.close() del shoplist f = file(shoplistfile) storedlist = p.load(f) print storedlist
