Python File read () method
Outline
read () method for reading a specified number of bytes from the file, if not given or is negative read all.
grammar
read () method has the following syntax:
fileObject.read();
parameter
size - the number of bytes read from the file.
return value
It returns the byte read from a string.
Examples
The following example illustrates the read () method of use:
W3big.txt content file as follows:
1:www.w3big.com 2:www.w3big.com 3:www.w3big.com 4:www.w3big.com 5:www.w3big.com
Loop reads the contents of the file:
#!/usr/bin/python
# -*- coding: UTF-8 -*-
# 打开文件
fo = open("w3big.txt", "rw+")
print "文件名为: ", fo.name
line = fo.read(10)
print "读取的字符串: %s" % (line)
# 关闭文件
fo.close()
The above example output is:
文件名为: w3big.txt 读取的字符串: 1:www.runo