第一个爬虫和测试

Posted 2020-12-20 wjxk

完善球赛程序，测试所写程序，所有函数测试结果

代码：

 

from random import random
def printIntro():
print("模拟两支排球队A和B的排球比赛")
print("A和B的能力值(以0到1之间的小数表示)")
def getInputs():
a=eval(input("请输入队伍A的能力值(0~1):"))
b=eval(input("请输入队伍B的能力值(0~1):"))
n=eval(input("模拟比赛的场次:"))
return a,b,n
def simNGames(n,probA,probB):
winsA,winsB=0,0
for i in range(n):
scoreA,scoreB=simOneGame(probA,probB)
if scoreA>scoreB:
winsA +=1
else:
winsB +=1
return winsA,winsB
def gameOver(a,b):
if (a>25 and abs(a-b)>=2 )or(b>25 and abs(a-b)>=2):
return True
else:
return False
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 final(probA,probB):
winsA,winsB=simNGames1(4,probA,probB)
printSummary(winsA,winsB)
if not winsA==3 or winsB==3:
if winsA==winsB==2:
winsA1,winsB1=simOneGame1(probA,probB)
finalprintSummary(winsA,winsB)
else:
finalprintSummary(winsA,winsB)
def simNGames1(n,probA,probB):
winsA,winsB=0,0
for i in range(n):
scoreA,scoreB=simOneGame2(probA,probB)
if winsA==3 or winsB==3:
break
if scoreA>scoreB:
winsA+=1
else:
winsB+=1
return winsA,winsB
def simOneGame2(probA,probB):
scoreA,scoreB=0,0
serving="A"
while not GG(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 simOneGame1(probA,probB):
scoreA,scoreB=0,0
serving="A"
while not finalGameOver(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 GG(a,b):
return a==3 or b==3
def finalGameOver(a,b):
if (a==8 or b==8):
if a>b:
print("A队获得8分，双方交换场地")
else:
print("B队获得8分，双方交换场地")
if (a>15 and abs(a-b)>=2 )or(b>15 and abs(a-b)>=2):
return True
else:
return False
def finalprintSummary(winsA,winsB):
n=winsA+winsB
if n>=4:
print("进行最终决赛")
if winsA>winsB:
print("最终决赛由A获胜")
else:
print("最终决赛由B获胜")
else:
if winsA>winsB:
print("最终决赛由A获胜")
else:
print("最终决赛由B获胜")
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{:0.1%}".format(winsA,winsA/n))
print("选手B获胜{}场比赛，占比{:0.1%}".format(winsB,winsB/n))
def main():
printIntro()
probA,probB,n=getInputs()
winsA,winsB=simNGames(n,probA,probB)
printSummary(winsA,winsB)
final(probA,probB)
try:
main()
except:
print("Error")

结果：

用ruquests的get函数访问谷歌网站20次，打印返回状态，text（）内容，计算text（）属性和content属性所返回网页内容的长度

代码：

import requests
for i in range(1,21):
r = requests.get("https://www.google.cn/")
r.raise_for_status()
r.encoding=‘utf-8‘
print(r.status_code)
print(r.text)
len1=len(r.text)
len2=len(r.content)
print(‘text()属性所返回的长度{}‘.format(len1))
print(‘content()属性所返回的长度{}‘.format(len2))

结果：