（1）模拟乒乓球赛函数测试结果：
单打：
from random import random def printIntro(): print("这个程序模拟两个选手A和B的某种比赛") print("程序运行需要A和B的能力值（0到1之间）") def getInputs(): a=eval(input("请输入选手A的能力值（0-1）：")) b=eval(input("请输入选手B的能力值（0-1）：")) return a,b def simNGames(probA,probB): winsA,winsB=0,0 for i in range(7): scoreA,scoreB=simOneGame(probA,probB) if scoreA>scoreB: winsA+=1 if winsA==5: break else: winsB+=1 if winsB==5: break return winsA,winsB def gameOver(a,b): return a==11 or b==11 def simOneGame(probA,probB): scoreA,scoreB = 0,0 serving = 'A' while not gameOver(scoreA,scoreB): if serving == 'A': if random()<probA: scoreA+=1 else: serving='B' else: if random()<probB: scoreB+=1 else: serving='A' return scoreA,scoreB def printSummary(winsA,winsB): n=winsA+winsB print("竞技分析开始，共模拟{}场比赛".format(n)) print("选手A获胜{}场比赛，占比{:.1%}".format(winsA,winsA/n)) print("选手B获胜{}场比赛，占比{:.1%}".format(winsB,winsB/n)) try: printIntro() probA,probB = 0.5,0.5 winsA,winsB = simNGames(probA,probB) printSummary(winsA,winsB) print("043林树锋的结果截图") except: print('Error')
测试结果：
双打：
from random import random def printIntro(): print("这个程序模拟两个选手A和B的某种比赛") print("程序运行需要A和B的能力值（0到1之间）") def getInputs(): a=eval(input("请输入选手A的能力值（0-1）：")) b=eval(input("请输入选手B的能力值（0-1）：")) return a,b def simNGames(probA,probB): winsA,winsB=0,0 for i in range(5): scoreA,scoreB=simOneGame(probA,probB) if scoreA>scoreB: winsA+=1 if winsA==3: break else: winsB+=1 if winsB==3: break return winsA,winsB def gameOver(a,b): return a==11 or b==11 def simOneGame(probA,probB): scoreA,scoreB = 0,0 serving = 'A' while not gameOver(scoreA,scoreB): if serving == 'A': if random()<probA: scoreA+=1 else: serving='B' else: if random()<probB: scoreB+=1 else: serving='A' return scoreA,scoreB def printSummary(winsA,winsB): n=winsA+winsB print("竞技分析开始，共模拟{}场比赛".format(n)) print("选手A获胜{}场比赛，占比{:.1%}".format(winsA,winsA/n)) print("选手B获胜{}场比赛，占比{:.1%}".format(winsB,winsB/n)) try: printIntro() probA,probB = 0.5,0.5 winsA,winsB = simNGames(probA,probB) printSummary(winsA,winsB) print("043林树锋的结果截图") except: print('Error')
测试结果：
。
（2）用 requests 库的 get（）函数访问搜狗20次，打印返回状态，text（）内容，计算 text（）属性和 content（）属性所返回的网页内容长度。
import requests for i in range(0,20): r=requests.get("https://www.sogou.com/") print(r.status_code) print(r.text) print(type(r.text)) print(len(r.content))
（3）完成简单html页面计算：
from bs4 import BeautifulSoup import re html=""" <!DOCTYPE html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head> <body> <h1>我的第一个标题</h1> <p id="first">我的第一个段落</p > </body> <table border="1"> <tr> <td>row 1, cell 1</td> <td>row 1, cell 2</td> </tr> <tr> <td>row 2, cell 1</td> <td>row 2, cell 2</td> </tr> </table> </html> """ abc= BeautifulSoup(html) print(str(abc.head.string)+'\n'+'43')#打印头标签内容加上学号 print(abc.body.string)#打印body标签的内容 print(abc.find_all(id="first")) r=abc.text zhongwen = re.findall(u'[\u1100-\uFFFDh]+?',r) print(zhongwen)
（4）爬取中国大学排名网站内容并转换为csv文件：
import csv import os import requests
import pandas from bs4 import BeautifulSoup allUniv = [] def getHTMLText(url): try: r = requests.get(url, timeout=30) r.raise_for_status() r.encoding = 'utf-8' return r.text except: return "" def fillUnivList(soup): data = soup.find_all('tr') for tr in data: ltd = tr.find_all('td') if len(ltd)==0: continue singleUniv = [] for td in ltd: singleUniv.append(td.string) allUniv.append(singleUniv) def writercsv(save_road,num,title): #转化为csv文件 if os.path.isfile(save_road): with open(save_road,'a',newline='')as f: csv_write=csv.writer(f,dialect='excel') for i in range(num): u=allUniv[i] csv_write.writerow(u) else: with open(save_road,'w',newline='')as f: csv_write=csv.writer(f,dialect='excel') csv_write.writerow(title) for i in range(num): u=allUniv[i] csv_write.writerow(u) title=["排名","学校名称","省市","总分","生源质量","培养结果","科研规模","科研质量","顶尖成果","顶尖人才","科技服务","产学研究合作","成果转化"] save_road="C:\\Users\\Benny\\Desktop\\Python\\Python练习\sqlit_test02.csv" def main(): url = 'http://www.zuihaodaxue.cn/zuihaodaxuepaiming2016.html' html = getHTMLText(url) soup = BeautifulSoup(html, "html.parser") fillUnivList(soup) writercsv(save_road,100,title) main()
