Section Sixth: Python file processing

File (' Test.txt ', ' r ')         read-only mode, is also the default way. (If the Test.txt file does not exist, it will error.) ) file (' Test.txt ', ' W ')         write a file. (If you do not have this file, a file will be created in the current directory.) file (' Test.txt ', ' a ')          Append method. File (' Test.txt ', ' W '). Write (' abcdefghkhjisorg ')    put ABC ... Writes a test.txt file. The way it is written overwrites the old file. F=open ('/tmp/hello ', ' W ') Open (path + file name, read-write mode)  with open (' Test.txt ', ' R ') as f:        #这种方式写文件, do not close automatically save after writing. For i in f.readlines ():                         print i   -------- ---------------------------------------------f=file (' Test.txt ', ' W ')                                #创建一个文件, the type is written to open f.write (' TODAY IS A&NBsp;good day\n ')       #换行  f.close ()                                             #   Close and save (to be closed in R). import tab                                         #导入tab键f. Read ()                                               #读入写入的内容f. Flush ()                                               #刷新写入磁盘 (closed in R) F.tell ()                                                # Displays the first few characters now. F.seek (0)                                           #移到指定的字符位置. For example, move to a 33rd character. F.seek () f.readline ()                                        #换行的方式读, read one line at a time. F.readlines ()                                     #以列表的方式读全部内容content =f.read ()                              #把文件读的方式传给contentcontent                                            # View content Contents Content.split (' \ n ') [0]                       #分行的方式查看文件, [0], the first line is viewed. [1] When viewing the second line. C=f.readlines ()                               #cc [0]c[1] Modify the replacement file:  for  i in fileinput.input (' A.log ', inplace=1):      i=i.replace (' Break ', ' Continue ')       print i first back up and then modify the file:   for  i in fileinput.input (' A.log ', inplace=1,backup= '. Bak '):      i=i.replace (' Break ', ' Continue ')       print i

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Section Sixth: Python file processing