Location of Python read/write files and file pointers

Use read to read files and transmit the number of bytes to read

Write a file to pass the string to be written.

 

1. Write files

 

>>> F = open ('e: // test.txt ', 'w') <br/> A = [1, 2] <br/> F. write (a); <br/> traceback (most recent call last): <br/> file "<pyshell #13>", line 1, in <module> <br/> F. write (a); <br/> typeerror: Write () argument 1 must be STR, not list <br/> F. write ('Hello World'); <br/> 11 <br/> F. close () <br/>

2. Read files

>>> F = open ('e: // test.txt ', 'R') <br/> f. read (5) <br/> 'hello' <br/> f. seek (0, 1) <br/> 5 <br/> f. read () <br/> 'World' <br/> f. seek (0, 0) <br/> 0 <br/> f. read () <br/> 'Hello world' <br/> f. close () <br/>

 

Write can only write strings. To write other types of data, you must use the pickle package.