root@ubuntu:~/dongbo/tools/python/day2# vi diedai.py #!/usr/bin/env python#_*_ coding:utf-8 _*_for i in "test.txt":        print i,

root@ubuntu:~/dongbo/tools/python/day2# python diedai.py t e s t . t x troot@ubuntu:~/dongbo/tools/python/day2#

可以发现是将test.txt打印出来，没有去查找test.txt文件。下面是将文件内容打印出来了。root@ubuntu:~/dongbo/tools/python/day2# cat diedai.py #!/usr/bin/env python#_*_ coding:utf-8 _*_f =  file("/root/dongbo/tools/python/day2/test.txt")for i in f:	print i,root@ubuntu:~/dongbo/tools/python/day2#

root@ubuntu:~/dongbo/tools/python/day2# python diedai.py wo ai ni chenxiaoyandongbodongbo ai chenxiaoyan

下面的方式就是把每个字符打印出来了。

root@ubuntu:~/dongbo/tools/python/day2# cat diedai.py #!/usr/bin/env python#_*_ coding:utf-8 _*_f =  file("/root/dongbo/tools/python/day2/test.txt")for i in f.readline():print i,root@ubuntu:~/dongbo/tools/python/day2# python diedai.py w o   a i   n i   c h e n x i a o y a n d o n g b o root@ubuntu:~/dongbo/tools/python/day2#