P301习题

8.1
from random import random
def printInatro():
print("这个程序模拟两个选手A何B的某种竞技比赛")
print("程序运行需要A和B的能力值（用0到1之间的小数表示)")
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）："))
n = eval(input("模拟比赛的场次："))
return a,b,n
def simNGame(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):
return a15 or b15
def simOneGame(probA,probB):
scoreA, scoreB =0,0
serving = "A"
while not gameOver(scoreA,scoreB):
faQiu1 = 0
if serving == "A":
if random() < probA:
scoreA += 1
faQiu1 += 1
else:
faQiu1 += 1
if faQiu1//2 == 0:
serving = "B"
else:
if random() < probB:
scoreB += 1
faQiu1 += 1
else:
faQiu1 += 1
if faQiu1//2 == 0:
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{: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():
printInatro()
probA, probB, n = getInputs()
winsA, winsB = simNGame(n,probA,probB)
printSummary(winsA, winsB)
main()

8.2
from random import random
def printInatro():
print("这个程序模拟两个选手A何B的某种竞技比赛")
print("程序运行需要A和B的能力值（用0到1之间的小数表示)")
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）："))
n = eval(input("模拟比赛的场次："))
return a,b,n
def simNGame(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):
return a15 or b15
def simOneGame(probA,probB):
scoreA, scoreB =0,0
serving = "A"
while not gameOver(scoreA,scoreB):
if serving == "A":
if random() < probA:
scoreA += 1
serving == "B"
else:
scoreB += 1
serving == "B"
else:
if random() < probB:
scoreB += 1
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{: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():
printInatro()
probA, probB, n = getInputs()
winsA, winsB = simNGame(n,probA,probB)
printSummary(winsA, winsB)
main()

8.3
you-get https: // www.bilibili.com / video / BV1zQ4y1B7VP /?spm_id_from = 333.1387.favlist.content.click & vd_source = da3a58b86a35a8dcdcf5

8.4
from direct.showbase.ShowBase import ShowBase

class MyApp(ShowBase):
def init(self):
ShowBase.init(self)

    # 加载模型
    self.scene = self.loader.loadModel("models/environment")
    self.scene.reparentTo(self.render)

    # 设置相机位置
    self.camera.setPos(0, -50, 10)

app = MyApp()
app.run()

8.5
import networkx as nx
import matplotlib.pyplot as plt
G = nx.Graph()
nx.draw(G)

8.6
from PIL import Image
from PIL import ImageFilter
im = Image.open('birdnest.jpg')
om = im.filter(ImageFilter.EMBOSS)
om.save('birdnestContour.jpg')

8.7
from PIL import Image
from PIL import ImageFilter
im = Image.open('birdnest.jpg')
om = im.filter(ImageFilter.CONTOUR)
om.save('birdnestContour.jpg')