python读取文件内容

python读取文件内容：

1. 使用argv

# coding:utf-8
#!/usr/bin/python
 
from sys import argv
 
script, filename = argv
txt = open(filename, 'r')
 
print "你要查看的文件是：%r" %filename
print ""
print "文件内容如下："
print txt.read()
txt.close()

执行脚本：# python readfile_1.py /home/a.test

2. 使用raw_input

# coding:utf-8
#!/usr/bin/python
 
prompt = "-->"
 
print "输入你要查看的文件："
filename = raw_input(prompt)
 
print ""
print "文件内容如下："
txt = open(filename, 'r')
print txt.read()
txt.close()

执行脚本： # python readfile_2.py