文件操作

Posted 2021-02-03 centwei

 

#!/user/bin/env python
# -*- coding:utf-8 -*-
# 1.open（）打开文件路径，后面跟 encoding解码。不指定解码的话，默认的是系统的编码 默认的是读r
# file1=open("测试",encoding="utf-8")
# data=file1.read()
# print(data)
# file2=open("测试","r",encoding="utf-8")
# data=file2.read()
# print(data)
# file2.close()
# # 2.w是open方法里的写属性。
# data2=open("测试1","w",encoding="utf-8")
# data2.write("来啦利来
来来拉里拉里
来阿里rrrrrrrr阿里阿拉")
# data2.close()
# 3.a是在最后追加。
# data=open("测试","a",encoding="utf-8")
# file2=data.write("我是新追加的内容
,我是第二行追加
")
# data.close()
# 4.open其它的用法wr + r+ a+
file=open("测试1","r+",encoding="utf-8")
data=file.read()
print(data)