f = open('abc.txt','a') a = f.read() f.close()
f = open('abc.txt','a')
a = f.read()
f.close()
可改写为：
with open('abc.txt','a') as f: a = f.read()
with open('abc.txt','a') as f:
#！ /usr/bin/env python # -*- coding:utf-8 -*-# Author:qpzm
#！ /usr/bin/env python