Python读文件

时间：2014-06-06 10:01:46 收藏：0 阅读：261

读取文件第一行内容：

for 
c in 
open(‘7.py‘,‘r‘).readline():
    print 
c,
else:
    print 
‘readline is over!‘

打印结果为：

root@IdeaPad:~/test# python 8.py 
s 1   
=   ‘ w w w . e v i l x r . c o m ‘
readline is 
over!

用Python实现文件内容的拷贝：

root@IdeaPad:~/test# cat 9.py 
for 
ss in 
open(‘7.py‘,‘r‘).readlines():
    open(‘evilxr.txt‘,‘a+‘).write(ss)

运行该python后会在该目录下生成一个名为evilxr.txt的文件，该文件的内容和7.py的一样：

root@IdeaPad:~/test# ls
1.txt  
4.py  7.py   
9.py        
ac.tar      aobama      newfile
2.txt  
5.py  8.py   
aa.tar.gz   ac.tar.bz2  evilxr
3.py   
6.py  8.py~  ab.tar.bz2  ac.tar.gz   evilxr.txt
root@IdeaPad:~/test# cat evilxr.txt 
s1 = 
‘www.evilxr.com‘
ev = 
[1,3,4,5,6,7,86,120]
 
i = 
0
for 
c in 
s1:
    print 
format (i,‘2d‘), c
    i = 
i + 
1
else:
    print 
‘The for is out!‘
 
 
i = 
0
for 
evilxr in 
ev:
    print 
format(i,‘2d‘),evilxr
    i = 
i + 
1
 
print 
‘This is New!‘
 
tup = 
(1,2,3,4,5)
for 
t in 
tup:
    print 
t
else:
    print 
‘This is tup!‘
root@IdeaPad:~/test# 

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