欧美亚洲综合另类色妞网_欧美亚洲综合另类色妞网

无奈之下，韩信只有暂时放下自己的宏图伟业和远大抱负，当务之急就是如何应对好汉王刘邦，从而做到自保。一群为了理想生活的学生在校园里发生的一系列有笑有泪的，有爱有憎的爱情故事……　　缉毒大队一举歼灭了以毛杰父母为首的贩毒据点。毛杰知道了安心的真实身份后，开始实行疯狂的报复，张铁军死在了毛杰的手上。大家不放心，就进屋查看，已经没人了……不等他说完，板栗立即道：葫芦哥哥，你先带人去城里找，两件事并一处。One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.