import sysdef HandleCPlusPlusComment(lines,i):	index = lines[i].find("//")	if index !=-1:		lines[i]=lines[i][0:index]		lines[i]+="\r\n"def HandleCComment(lines,i):	global bhasCCommentBegin	while True:		if not bhasCCommentBegin:			index = lines[i].find("/*")			if index != -1:				bhasCCommentBegin = True				index2 = lines[i].find("*/",index+2)				if index2 != -1:					lines[i]=lines[i][0:index]+lines[i][index2+2:-1]					bhasCCommentBegin = False #continue look for comment				else:					lines[i]=lines[i][0:index]  # only find "begin comment					lines[i]+="\r\n"					return -2			else:				return 0 #not find		else:			index2=lines[i].find("*/")			if index2 !=-1:				bhasCCommentBegin = False				lines[i]=lines[i][index2+2:-1] #continue look for comment			else:				return -1 #should delete thisdef RemoveComment(file):	global bhasCCommentBegin	f = open(file,"r")	lines = f.readlines()	leng =len(lines)	i=0	while i<leng:		ret = HandleCComment(lines,i)		if ret == -1:			if bhasCCommentBegin == False:				print "There must be some wrong"			del lines[i]			i -= 1			leng -= 1		elif ret== 0:			HandleCPlusPlusComment(lines,i)		else:			pass		i+=1	Output(lines)bhasCCommentBegin = Falsedef Output(lines):	for line in lines:		print line,if __name__== '__main__':	RemoveComment(sys.argv[1])	

python面试题--去除C++源文件里的注释