python Ä£¿éµÄ__name__ __main__
ÿ¸öÄ£¿é¶¼ÓÐÒ»¸öÃû³Æ£¬ÔÚÄ£¿éÖпÉÒÔͨ¹ýÓï¾äÀ´ÕÒ³öÄ£¿éµÄÃû³Æ¡£ÕâÔÚÒ»¸ö³¡ºÏÌØ±ðÓÐÓÃ
——¾ÍÈçÇ°ÃæËùÌáµ½µÄ£¬µ±Ò»¸öÄ£¿é±»µÚÒ»´ÎÊäÈëµÄʱºò£¬Õâ¸öÄ£¿éµÄÖ÷¿é½«±»ÔËÐС£
ÿ¸öPythonÄ£¿é¶¼ÓÐËüµÄ__name__£¬Èç¹ûËüÊÇ'__main__'£¬Õâ˵Ã÷Õâ¸öÄ£¿é±»Óû§µ¥¶ÀÔËÐУ¬
ÎÒÃÇ¿ÉÒÔ½øÐÐÏàÓ¦µÄÇ¡µ±²Ù×÷¡£
#!/usr/bin/python
# Filename: using_name.py
if __name__ == '__main__':
print 'This program is being run by itself'
else:
print 'I am being imported from another module'
Êä³ö
$ python using_name.py
This program is being run by itself
$ python
>>> import using_name
I am being imported from another module
Ïà¹ØÎĵµ£º
ÔËÐÐÒ»¾äpythonÃüÁî
¶ÔvcÉèÖ÷¾¶
include:D:\PYTHON31\INCLUDE
lib:D:\PYTHON31\LIBS
#include "stdafx.h"
#include "python.h"
int main(int argc, char* argv[])
{
Py_Initialize() ;
PyRun_SimpleString("print('Hello')");
//PyRun_SimpleString("print(dir())");
Py_Finalize();& ......
±¾Æª½«½éÉÜpythonÖÐsys, getoptÄ£¿é´¦ÀíÃüÁîÐвÎÊý
Èç¹ûÏë¶Ôpython½Å±¾´«²ÎÊý£¬pythonÖжÔÓ¦µÄargc, argv(cÓïÑÔµÄÃüÁîÐвÎÊý)ÊÇÊ²Ã´ÄØ£¿
ÐèҪģ¿é£ºsys
²ÎÊý¸öÊý£ºlen(sys.argv)
½Å±¾Ãû£º sys.argv[0]
²ÎÊý1£º sys.argv[1]
²ÎÊý2£º sys.argv[2]
test.py
1
import ......
from http://blog.alexa-pro.cn/?p=189
1: os.listdir(path) //pathΪĿ¼
¹¦ÄÜÏ൱ÓÚÔÚpathĿ¼ÏÂÖ´ÐÐdirÃüÁ·µ»ØÎªlistÀàÐÍ
print os.listdir('..')
Êä³ö£º
[a,b,c,d]
2: os.path.walk(path,visit,arg)
path £ºÊǽ«Òª±éÀúµÄĿ¼
visit £ºÊÇÒ»¸öº¯ÊýÖ¸Õ룬º¯ÊýÔ²ÐÎΪ£º
callback(arg,dir,fileList)
ÆäÖÐargΪΠ......
http://blog.alexa-pro.cn/?p=197
1.´ò¿ªÎļþ´úÂëÈçÏ£º
>>> f = open(”d:test.txt”, “w”)
˵Ã÷£ºµÚÒ»¸ö²ÎÊýÊÇÎļþÃû³Æ£¬°üÀ¨Â·¾¶£»µÚ¶þ¸ö²ÎÊýÊÇ´ò¿ªµÄģʽmode’r'£ºÖ»¶Á£¨È±Ê¡¡£Èç¹ûÎļþ²»´æÔÚ£¬ÔòÅ׳ö´íÎ󣩒w'£ºÖ»Ð´£¨Èç¹ûÎļþ ²»´æÔÚ£¬Ôò×Ô¶¯´´½¨Îļþ£©’a'£º¸½¼ ......