python項(xiàng)目實(shí)踐(存儲(chǔ)版)
【正文】 e39。 % cmd) def handle(self, session, line): if not (): return parts = (39。 % ) def unknown(self, session, cmd): (39。) else: = name ()class ChatRoom(Room): def add(self, session): ( + 39。) def do_look(self, session, line): (39。)class LogoutRoom(Room): def add(self, session): try: del [] except KeyError: passclass ChatSession(async_chat): def __init__(self, server, sock): (self,sock) = server (39。: s = ChatServer(PORT, NAME) try: () except KeyboardInterrupt: print整個(gè)程序分為我一開始說的三個(gè)部分：提供客戶端的socket連接：ChatServer類。,port)) (5) = name = {} = ChatRoom(self) def handle_accept(self): conn, addr = () ChatSession(self,conn)if __name__ == 39。) for name in : (name + 39。 + line + 39。 % name) (39。+cmd, None) try: meth(session, line) except TypeError: (session,cmd)class Room(CommandHandler): def __init__(self, server): = server = [] def add(self, session): (session) def remove(self, session): (session) def broadcast(self, line): for session in : (line) def do_logout(self, session, line): raise EndSessionclass LoginRoom(Room): def add(self,session): (self,session) (39。class EndSession(Exception):passclass CommandHandler: def unknown(self, session, cmd): (39。39。就這些，至于客戶端方面不需要寫代碼，用系統(tǒng)的telnet工具即可。而PlainDestination和HTMLDestination的作用很明顯，前者是用來輸出獲取到的內(nèi)容到終端的，后者是寫數(shù)據(jù)到html文件中的。 clpa_group = 39。def runDefaultSetup(): agent = NewsAgent() bbc_url = 39。 % (id,) print out, 39。 print out, 39。) print out,39。,start) server = NNTP() ids = (,date,hour)[1] for id in ids: lines = (id)[3] message = message_from_string(39。39。39。 | 發(fā)布：20111226 2:07 . 書中的第四個(gè)練習(xí)，新聞聚合。而dispatch比較復(fù)雜，復(fù)雜之處在于他是用來動(dòng)態(tài)拼合函數(shù)并且進(jìn)行執(zhí)行的。首先看到這個(gè)程序是有兩個(gè)類，其實(shí)完全可以當(dāng)作一個(gè)類，因?yàn)橛辛死^承。) def writeFooter(self): (39。) (attrs[39。 () def startPage(self, attrs): print 39。 %(key, val)) (39。, name, attrs) def endElement(self, name): (39。下面來看這部分代碼，書中的實(shí)現(xiàn)比較復(fù)雜，比較靈活。使用方式如下： parse(39。)python項(xiàng)目練習(xí)三：萬能的XML 13869176。COMMENT_CHARS = 39。python項(xiàng)目練習(xí)二：畫幅好畫 22982176。)handler = HTMLRenderer()parser = BasicTextParser(handler)()這個(gè)模塊里面的處理思路是，遍歷客戶端（也就是程序執(zhí)行的入口）給插進(jìn)去的所有的規(guī)則和過濾器，來處理讀進(jìn)來的文本。) (r39。 看代碼：import sys, refrom handlers import *from util import *from rules import *class Parser: def __init__(self,handler): = handler = [] = [] def addRule(self, rule): (rule) def addFilter(self,pattern,name): def filter(block, handler): return (pattern, (name),block) (filter) def parse(self, file): (39。 inside = False def condition(self, block): return True def action(self,block, handler): if not and (self,block): () = True elif and not (self,block): () = False return Falseclass ParagraphRule(Rule): type = 39。class TitleRule(HeadingRule): type = 39。再來看第三個(gè)模塊“規(guī)則”，這個(gè)模塊，拋開那祖父類不說，其他類應(yīng)該有的兩個(gè)方法
環(huán)評(píng)公示相關(guān)推薦
鄂ICP備17016276號(hào)-1