2004年04月27日 星期二 16:02
An HTML attachment was scrubbed... URL: http://lists.exoweb.net/pipermail/python-chinese/attachments/20040427/f12f20cd/attachment.html -------------- next part -------------- # -*- coding: gbk -*- # file codeBall.py #/********************************* # \class codeBall # \brief [python-chinese] ȤζÎÊÌ⡪¡ªºÅÂë·ÖÅäÊÔ½â # \version 1.0 04427 liux at gdcn.com ÔʼÌá³ö£¬ÏÖÔÚÒÔ×·½Ê½½â¾ö # \author Zoom Quiet (zoomq at itcase.com) # \attention Released under GNU Lesser GPL library license # \par # \return # \sa #*********************************/ import sys, os,string import outputLog,PnC class playCodeBall: def __init__(self): self.log="" def __repr__(self):# Àà×ÔÊö¶¨Òå print("Zoom.Quiet ×·½Ê½½øÐÐÕýÈ·½â´ðÊä³ö\n ¿ÉÒÔ×÷ΪÆäËü½âµÄÑéÖ¤") return self.log def filter(self,seq,order): seqCB = [] length = len(order) tag = 0 for item in seq: for i in range(length): #if(i == int(item[i-1])): if(i == int(item[i]) - 1): print "bad CodeBall> %s at [%s] = %s"%(item,i,item[i]) break else: if(i+1 == length): tag = 1 if(1==tag): seqCB.append(item) #print item tag = 0 return seqCB if __name__ == '__main__': # ×Ô²âÊÔ tryPnC = PnC.permutation() # imported by other programs as well if(tryPnC): #½¨Á¢ÐòÁÐ order="123456" seq = list(order) #Éú³ÉÅÅÁÐ p = tryPnC.permute(seq) #Í桪¡ª¹ýÂ˳öÇÐÌâµÄ CB = playCodeBall() result = CB.filter(p,order) #Êä³öÕýÈ·µÄÐòÁе½Îļþ exp = outputLog.exporter() exp.exportArray(result) exp.writeInFile("CodeBall.log") print "µ±¹ÞÓÐ %s ¸öʱ,È«²¿ %s ÖÖÅÅÁÐÖÐ,ºÏÌâµÄΪ:%s ÖÖ!"%(len(order),len(p),len(result)) else: print("\"\"") -------------- next part -------------- # -*- coding: gbk -*- # file outputLog.py #/********************************* # \class outputLog # \brief ½á¹ûÊý¾ÝÊä³öÖ§³Ö # \version 1.0 04427 Ö§³Ö×Ö´®£¬ºÍÊý×éÊä³ö£¡ # \author Zoom Quiet (zoomq at itcase.com) # \attention Released under GNU Lesser GPL library license # \par # \return # \sa #*********************************/ import sys, os,string class exporter: def __init__(self): self.log="" def __repr__(self):# Àà×ÔÊö¶¨Òå return self.log def writeInFile(self,fname): open(fname,"w").write(self.log) print("³É¹¦Êä³öÊý¾Ýµ½Îļþ:%s"%fname) def exportArray(self,seq): for i in seq: self.log += i+"\n" return self.log def exportTxt(self,txt): self.log += txt return self.log if __name__ == '__main__': # ×Ô²âÊÔ exp = exporter() # imported by other programs as well if(exp): import PnC tryPnC = PnC.permutation() seq = list("1234") p = tryPnC.permute(seq) exp.exportArray(p) exp.writeInFile("exp.log") #open("PnC.log","w").write(PnC.export) else: print("\"\"") -------------- next part -------------- # -*- coding: gbk -*- # file PnC.py #/********************************* # \class PnC # \brief permutation and combination ÅÅÁÐ×éºÏ Êä³ö # \version 1.0 04427 ʹÓÃ"Ò»ÇдÓÓÎÏ·¿ªÊ¼ - ChinesePython Wiki"µÄ¼¼ÇÉ # \author Zoom Quiet (zoomq at itcase.com) # \attention Released under GNU Lesser GPL library license # \par # \return # \sa #*********************************/ import sys, os,string import outputLog class permutation: def __init__(self): self.log="" self.export="" def __repr__(self):# Àà×ÔÊö¶¨Òå return self.log def permute_O_n(self,seq, index): seqc = seq[:] seqn = [seqc.pop()] divider = 2 while seqc: index, new_index = divmod(index,divider) seqn.insert(new_index, seqc.pop()) divider += 1 return ''.join(seqn) def permute(self,seq): seqn = [seq.pop()] while seq: newseq = [] new = seq.pop() #print "seq:",seq,'seqn', seqn ,'new', new for i in range(len(seqn)): item = seqn[i] for j in range(len(item)+1): newseq.append(''.join([item[:j],new,item[j:]])) seqn = newseq #print 'newseq',newseq return seqn if __name__ == '__main__': # ×Ô²âÊÔ tryPnC = permutation() # imported by other programs as well if(tryPnC): seq = list("1234") #for i in range(30): #print tryPnC.permute_O_n(seq, i) p = tryPnC.permute(seq) #print len(p) #for i in p: # print i #open("PnC.log","w").write(PnC.export) exp = outputLog.exporter() exp.exportArray(p) exp.writeInFile("PnC.log") else: print("\"\"") -------------- next part -------------- _______________________________________________ python-chinese list python-chinese at lists.python.cn http://python.cn/mailman/listinfo/python-chinese
2004年04月27日 星期二 16:15
把我的程序也贴上来给大家参考,顺便演示一下yield的用法(记得前一段时间有人问 过),:-) 用这个程序算10个球得出来的结果是1334961: 比较简短,就不放附件里了。 def f(l,start=1): if len(l)==0:yield "" else: tmp="" for x in l: if x == start:continue for y in f(filter(lambda z:z!=x,l),start+1): yield str(x)+y def main(): ans=[] for x in f(range(1,5),1): print x ans.append(x) print 'total:',len(ans) main() >From: liux at gdcn.com >Reply-To: python-chinese at lists.python.cn >To: "Zoom.Quiet" <zoomq at infopro.cn>, python-chinese at lists.python.cn >Subject: 回复:Re[10]: [python-chinese]趣味问题――号码分配――修订代码 >Date: Tue, 27 Apr 2004 16:02:57 +0800 > ><< codeBall.py >> ><< outputLog.py >> ><< PnC.py >> >_______________________________________________ >python-chinese list >python-chinese at lists.python.cn >http://python.cn/mailman/listinfo/python-chinese >_______________________________________________ >python-chinese list >python-chinese at lists.python.cn >http://python.cn/mailman/listinfo/python-chinese -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.exoweb.net/pipermail/python-chinese/attachments/20040427/78fe6ae8/attachment.htm
2004年04月27日 星期二 17:59
Hollo Who: 嗯嗯…………""" 返回一个迭代器,称为生成器迭代器,或者更常用的,生成器。通过重复地调用生成器的next()方法来运行生成器的函数体,直到抛出一个异常... """ yield 是用以将普通函式,声明为 构造函式的?! 为什么不用class.... 学习中! 非常精美哪! 随手使用文件输出修改了一下子, 并加入计时,进行效率比较: ]python codeBall.py run at: 2004-04-27 17:43:02 end at: 2004-04-27 17:43:03 本次运行共用时 0.547000169754秒 成功输出数据到文件:CodeBall.log 当罐有 8 个时,全部 40320 种排列中,合题的为:14833 种! ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ]python CBfilter.py run at: 2004-04-27 17:42:44 end at: 2004-04-27 17:42:50 本次运行共用时 6.25秒 成功输出数据到文件:CBfilte.log 不会吧!在下最笨的方法居然会快捷一些? 大家评评理,不可能的吧! 在下的测试环境: Python 2.3.3 (CJK) (#51, Feb 13 2004, 21:18:21) [MSC v.1200 32 bit (Intel)] on win32 --------[ AIDA32 (c) 1995-2002 Unlimited Possibilities ]-------- Version AIDA32 v2.00 Author fiery at freemail.hu Homepage http://hardware.jatekok.hu/aida32/ Report Type Quick Report Computer ZQSTUDIO (ZqStudio) Generator Administrator Operating System Microsoft Windows Server 2003 Server (Enterprise Edition) 5.2.3790 (.NET Beta) --------[ CPU ]------------ CPU Properties: CPU Type Intel Pentium 4A, 2525 MHz (6.25 x 404) CPU Alias Northwood, A80532 L1 Trace Cache 12K Instructions L1 Data Cache 8 KB L2 Cache 0 --------[ Memory ]------- Physical Memory: Total 255 MB Used 200 MB Free 54 MB Utilization 79 % 嗯嗯!在Linux 中再试一试: ++++++++++++++++++++++++++++++++++++++++++++++++ Python 2.3.3 (#1, Feb 12 2004, 22:21:49) [GCC 3.2 20020903 (Red Hat Linux 8.0 3.2-7)] on linux2 PII 266 128Mb; RedHat 8.0 ++++++++++++++++++++++++++++++++++++++++++++++++ [Zoomq at redhat8 zCodeBall]$ python codeBall.py run at: 2004-04-27 18:03:10 end at: 2004-04-27 18:03:17 本次运行共用时 6.66619110107秒 成功输出数据到文件:CodeBall.log 当罐有 8 个时,全部 40320 种排列中,合题的为:14833 种! [Zoomq at redhat8 zCodeBall]$ python CBfilter.py run at: 2004-04-27 18:03:55 end at: 2004-04-27 18:04:25 本次运行共用时 30.2400951385秒 成功输出数据到文件:CBfilte.log 没有天理哪! 难道Python 喜欢笨伯? 在下只是组织了一下子,最直接的排除法, 先生成所有排列,然后过滤去不吻合的是也乎是也乎………… /******** [2004-04-27]16:40:42 ; you wrote: Who Bruce> 把我的程序也贴上来给大家参考,顺便演示一下yield的用法(记得前一段时间有人问 Who Bruce> 过),:-) Who Bruce> 用这个程序算10个球得出来的结果是1334961: Who Bruce> 比较简短,就不放附件里了。 Who Bruce> def f(l,start=1): Who Bruce> if len(l)==0:yield "" Who Bruce> else: Who Bruce> tmp="" Who Bruce> for x in l: Who Bruce> if x == start:continue Who Bruce> for y in f(filter(lambda z:z!=x,l),start+1): Who Bruce> yield str(x)+y Who Bruce> def main(): Who Bruce> ans=[] Who Bruce> for x in f(range(1,5),1): Who Bruce> print x Who Bruce> ans.append(x) Who Bruce> print 'total:',len(ans) Who Bruce> main() >>From: liux at gdcn.com >>Reply-To: python-chinese at lists.python.cn >>To: "Zoom.Quiet" <zoomq at infopro.cn>, python-chinese at lists.python.cn >>Subject: 回复:Re[10]: [python-chinese]趣味问题――号码分配――修订代码 >>Date: Tue, 27 Apr 2004 16:02:57 +0800 >> >><< codeBall.py >> >><< outputLog.py >> >><< PnC.py >> >>_______________________________________________ >>python-chinese list >>python-chinese at lists.python.cn >>http://python.cn/mailman/listinfo/python-chinese >>_______________________________________________ >>python-chinese list >>python-chinese at lists.python.cn >>http://python.cn/mailman/listinfo/python-chinese ********************************************/ -- Free as in Freedom Zoom.Quiet #=========================================# ]Time is unimportant, only life important![ #=========================================# sender is the Bat!2.02 CE -------------- next part -------------- # -*- coding: gbk -*- # file CBfilter.py #/********************************* # \class CBfilter # \brief [python-chinese] 趣味问题――号码分配试解 # \version 1.0 04427 Who Bruce 原始提出;Zoomq Class 化 # \author Who Bruce # \attention Released under GNU Lesser GPL library license #*********************************/ import sys, os,string import outputLog class CBfilter: def __init__(self): self.log="" def __repr__(self):# 类自述定义 print("Who Bruce 的精巧方式 解答输出") return self.log def f(self,l,start=1): if len(l)==0:yield "" else: #tmp="" for x in l: if x == start:continue for y in self.f(filter(lambda z:z!=x,l),start+1): yield str(x)+y def play(self,order): ans=[] seq = range(1,order+1) for x in self.f(seq,1): self.log += x+"\n" #print x ans.append(x) #print 'total:',len(ans) self.log += '\ntotal:%s'%len(ans) return self.log if __name__ == '__main__': # 自测试 playCB = CBfilter() if(playCB): #玩――直接处理出结果! import timer watch= timer.timer() watch.start() result = playCB.play(8) print(watch.stop()) #输出正确的序列到文件 exp = outputLog.exporter() exp.exportTxt(result) exp.writeInFile("CBfilte.log") #print "当罐有 %s 个时,全部 %s 种排列中,合题的为:%s 种!"%(len(order),len(p),len(result)) else: print("\"\"") -------------- next part -------------- # -*- coding: gbk -*- # file codeBall.py #/********************************* # \class codeBall # \brief [python-chinese] 趣味问题――号码分配试解 # \version 2.0 04427 16:22 liux at gdcn.com fixed # \version 1.0 04427 liux at gdcn.com 原始提出,现在以最笨方式解决 # \author Zoom Quiet (zoomq at itcase.com) # \attention Released under GNU Lesser GPL library license # \par # \return # \sa #*********************************/ import sys, os,string import outputLog,PnC class playCodeBall: def __init__(self): self.log="" def __repr__(self):# 类自述定义 print("Zoom.Quiet 最笨方式进行正确解答输出\n 可以作为其它解的验证") return self.log def filter(self,seq,order): seqCB = [] length = len(order) tag = 0 for item in seq: for i in range(length): #if(i == int(item[i-1])): # 0427;16:22 liux at gdcn.com fixed if(i == int(item[i]) - 1): #print "bad CodeBall> %s at [%s] = %s"%(item,i,item[i-1]) break else: if(i+1==length): tag = 1 if(1==tag): seqCB.append(item) #print item tag = 0 return seqCB if __name__ == '__main__': # 自测试 tryPnC = PnC.permutation() # imported by other programs as well if(tryPnC): #建立序列 import timer watch= timer.timer() watch.start() order="12345678" seq = list(order) #生成排列 p = tryPnC.permute(seq) #玩――过滤出切题的 CB = playCodeBall() result = CB.filter(p,order) print(watch.stop()) #输出正确的序列到文件 exp = outputLog.exporter() exp.exportArrayCB(result) exp.writeInFile("CodeBall.log") print "当罐有 %s 个时,全部 %s 种排列中,合题的为:%s 种!"%(len(order),len(p),len(result)) else: print("\"\"") -------------- next part -------------- # -*- coding: gbk -*- # file outputLog.py #/********************************* # \class outputLog # \brief 结果数据输出支持 # \version 1.1 04427 数组的数码球输出辅助 exportArrayCB ... # \version 1.0 04427 支持字串,和数组输出! # \author Zoom Quiet (zoomq at itcase.com) # \attention Released under GNU Lesser GPL library license # \par # \return # \sa #*********************************/ import sys, os,string class exporter: def __init__(self): self.log="" def __repr__(self):# 类自述定义 return self.log def writeInFile(self,fname): open(fname,"w").write(self.log) print("成功输出数据到文件:%s"%fname) def exportArrayCB(self,seq): foo = "" for i in range(len(seq[0])): foo +=str(i+1) self.log += foo self.log +="\n"+"~"*27+"\n" for i in seq: self.log += i+"\n" self.log +="-"*27+"\n" self.log += foo return self.log def exportArray(self,seq): for i in seq: self.log += i+"\n" return self.log def exportTxt(self,txt): self.log += txt return self.log if __name__ == '__main__': # 自测试 exp = exporter() # imported by other programs as well if(exp): import PnC tryPnC = PnC.permutation() seq = list("1234") p = tryPnC.permute(seq) exp.exportArrayCB(p) exp.writeInFile("exp.log") #open("PnC.log","w").write(PnC.export) else: print("\"\"") -------------- next part -------------- # -*- coding: gbk -*- # file PnC.py #/********************************* # \class PnC # \brief permutation and combination 排列组合 输出 # \version 1.0 04427 使用"一切从游戏开始 - ChinesePython Wiki"的技巧 # \author Zoom Quiet (zoomq at itcase.com) # \attention Released under GNU Lesser GPL library license # \par # \return # \sa #*********************************/ import sys, os,string import outputLog class permutation: def __init__(self): self.log="" self.export="" def __repr__(self):# 类自述定义 return self.log def permute_O_n(self,seq, index): seqc = seq[:] seqn = [seqc.pop()] divider = 2 while seqc: index, new_index = divmod(index,divider) seqn.insert(new_index, seqc.pop()) divider += 1 return ''.join(seqn) def permute(self,seq): seqn = [seq.pop()] while seq: newseq = [] new = seq.pop() #print "seq:",seq,'seqn', seqn ,'new', new for i in range(len(seqn)): item = seqn[i] for j in range(len(item)+1): newseq.append(''.join([item[:j],new,item[j:]])) seqn = newseq #print 'newseq',newseq return seqn if __name__ == '__main__': # 自测试 tryPnC = permutation() # imported by other programs as well if(tryPnC): seq = list("1234") #for i in range(30): #print tryPnC.permute_O_n(seq, i) p = tryPnC.permute(seq) #print len(p) #for i in p: # print i #open("PnC.log","w").write(PnC.export) exp = outputLog.exporter() exp.exportArray(p) exp.writeInFile("PnC.log") else: print("\"\"") -------------- next part -------------- # -*- coding: gbk -*- # file timer.py #/********************************* # \class timer # \brief 通用Python 程序运行计时器 # \version 1.0 04427 for 数码球游戏 # \author Zoom.Quiet ( zoomq at itcase.com) # \attention Released under GNU Lesser GPL library license # \par usage # \li 声明 :watch = timer() # \li 跑秒 :watch.start() # \li 计时 :watch.stop() # \note 只要将watch.start();watch.stop() 分别插入到想测试的代码前后就可以了! #*********************************/ import sys,os,string,time class timer: def __init__(self): self.log="" def __repr__(self):# 类自述定义 print("利用Python 内含time 模块进行代码计时!") return self.log def start(self): self.start= time.time() self.log += "\n run at:"+time.strftime(" %Y-%m-%d %X",time.localtime(self.start)) return self.log def stop(self): self.stop= time.time() self.log += "\n end at:"+time.strftime(" %Y-%m-%d %X",time.localtime(self.stop)) self.log += "\n 本次运行共用时 %s秒"% (self.stop-self.start) return self.log if __name__ == '__main__': # 自测试 watch = timer() if(watch): import CBfilter playCB = CBfilter.CBfilter() # imported by other programs as well watch.start() result = playCB.play(8) print(watch.stop()) #print result else: print("\"\"")
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