with open 读写文件简单操作

# 读文件

# 开始准备要读取的文件
    with open('11.txt','rb') as f:
         # 读的方式是读所有行
         r = f.readlines()

         # print (r)




# # 写文件# 开始写入这个文件
    with open('22.txt','w') as f:
          # 写入的内容
          f.write('hello python')



# 从一个文件读取数据到另外一个文件
    with open('11.txt','rb') as f:
          a=f.readlines()
          b=str(a)[3:-2:]
          print(b)

          with open('22.txt','w') as j:
            # 追加写
           # with open('22.txt','a') as j:
                  # j.write(names+"\n")

                 j.write(str(b))
                 # print(b)

# 读取图片文件，写入图片文件
    with open('1.png','rb') as f:
          c=f.read()
          # print(c)
          with open('2.png','wb') as j:
                j.write(c)

刚开始 使用园子写博客，还不太会用，代码格式可能有点错乱，需要调整。