轉(zhuǎn)載
操作復(fù)雜對(duì)象結(jié)構(gòu)——訪問(wèn)者模式（一）(https://blog.csdn.net/LoveLion/article/details/7433523)
操作復(fù)雜對(duì)象結(jié)構(gòu)——訪問(wèn)者模式（二）(https://blog.csdn.net/LoveLion/article/details/7433567)
操作復(fù)雜對(duì)象結(jié)構(gòu)——訪問(wèn)者模式（三）(https://blog.csdn.net/LoveLion/article/details/7433576)
操作復(fù)雜對(duì)象結(jié)構(gòu)——訪問(wèn)者模式（四）(https://blog.csdn.net/LoveLion/article/details/7433591)
