Python not readable

try:
  with open('data.txt','w') as f:
    for each_line in f:
      print(each_line)
except OSError as reason:
print('出错啦'+str(reason))

报错not readable

r只读,r+读写,不创建

w新建只写,w+新建读写,二者都会将文件内容清零

以w方式打开,不能读出。w+可读写)

 

 

**w+与r+区别:

r+:可读可写,若文件不存在,报错;w+: 可读可写,若文件不存在,创建

posted @ 2017-01-25 12:45  喵喵帕斯  阅读(7387)  评论(0编辑  收藏  举报