1. 文件读写 Python中通过file类实现对文件的操作，如f = file('test.txt', 'w')表示以写方式打开文件test.txt，如果不指定打开方式，默认为读方式打开文件。文件的打开方式包括读、写和追加 2. 对象的持久化存储 在文件中存储对象，可以通过文件恢复对象的值。通过pickle和cPickle类实现（后者通过C编写，速度较快） import cPickle as p shoplistfile = 'shoplist.data' # the name of the file where we will store the object shoplist = ['apple', 'mango', 'carrot'] # Write to the file f = open(shoplistfile, 'wb') p.dump(shoplist, f) # dump the object to a file f.close() del shoplist # remove the shoplist # Read back from the storage f = open(shoplistfile, 'rb') storedlist = p.load(f) print(storedlist) Python3版本中，文件打开方式必须为wb和rb
