Python中用print方法向文件中写入内容

http://www.yangyanxing.com/article/749.html

一个小功能，我就是想用print功能实现，不想用write

import os
os.chdir("/usr/tem")
char="my name is yangyanxing"
f = open("test.txt","w")
print >>f,char

但是Python3中还可以用以下的方式

import os
os.chdir("/usr/tem")
char="my name is yangyanxing"
f = open("test.txt","w")
print(char,file=f)

也可以考虑用with as结构，会简单与周全些

try:
    with("man.txt","w") as data:
        print >>data,char
except IOError as err:
    print("Write error"+ str(err))

http://tieba.baidu.com/p/4427708271

在程序最前面加上这段

f_result=open('result.txt', 'w') 
sys.stdout=f_result
print 'print to file'