1.文件的写入和读取
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#!/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：
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我们都是木头人，不许说话不许动！ |
2.存储器的写入和读取
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#!/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：
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[1, 2, 2, 3] |
再来看一个使用cPickle储存器存储对象的例子
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#!/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 |
