Python file Operations

Now there are the following files:

1 su Shi's "Jiangcheng son, ten years of life and death"2 ten years of life and death two boundless,3 not thinking,4 self-remembering. 5 Thousands of miles of solitary graves,6 nowhere to say bleak. 7 Even if we meet each other without knowledge,8 Dust,9 The temples are like frost. Ten The night came to the return of the dream.  One Small Xuan window, A just dressing.  - were just no words, - only tears thousand lines.  the material to be heartbroken annually: - Moon Night, -Short Matsuoka.

1 f = open (' jiangcheng Sub. txt'# opens file 2 data=f.read ()# Get file Contents 3 # Close File

To prevent problems with file formats, you should write

f = Open (' Jiangcheng sub. txt ', ' r ', encoding= ' UTF8 ')

File operations

File operation mode

' a ' Add mode ' W ' Write mode ' R ' Read Mode ' r+ ' read from 0 position, start writing at last position ' w+ ' empty First, then read and write ' A + ' cursor defaults to last position

1F.read ()#reads the entire contents of the file, the output string2F.read (2)#take the first two units, Chinese and English characters are counted as one unit3F.readline ()#read a line of content4F.readlines ()#read multiple lines of content, output is a list5F.tell ()#output cursor location, by character, one Chinese three characters6F.seek ()#Move Cursor Position7  forIinchF:#Make an iterator out of the for-speaking object. Take a row with one line8F.flush ()#Writes the data in the cache to the disk, and the normal operation Close () is written9F.truncate ()#truncation, ' r ' mode cannot execute, specifies truncation of content after specified position

Open the file with the with operation, and automatically close when the operation is completed

With open ('log'R') as F:

Python file Operations