Python_27文件操作之打开文件的新方法
f=open('wenjianming','r+')
f.read()
f.close()
等同于
with open('wenjianming','r') as f:
f.read()
with支持同时打开两个文件
with open('wenjianming1','r') as f1 ，open('wenjianming2','r') as f2 :
f=open('wenjianming','r+')
f.read()
f.close()
等同于
with open('wenjianming','r') as f:
f.read()
with支持同时打开两个文件
with open('wenjianming1','r') as f1 ，open('wenjianming2','r') as f2 :
