python课后小练习五

作业一: 思聪爱吃热狗游戏

游戏介绍:
一款单人版的思聪吃热狗游戏,你可以自己调节思聪的位置, 移动时会消耗能量
10, 游戏中吃到热狗分数加 1, 能量加 20,最后的目标就是称霸世界咯, 吃掉
所有的热狗即游戏胜利。王思聪能量消耗完毕即游戏失败。
如何开始:
玩家:键盘方向键↑↓←→控制王思聪的移动。
游戏进阶要求:能否实现一个双人版吃热狗游戏?

代码实现如下：

"""
Date: 2019--16 10:18
User: yz
Email: 1147570523@qq.com
Desc:
"""
import random
import pygame
import sys
from pygame.locals import *

width = 640
height = 480
pygame.init()
screen = pygame.display.set_mode([width, height])
pygame.display.set_caption('思聪吃面包小游戏')  # 窗口定义标题
background = pygame.image.load("./img/bg.jpg").convert()
breadImg = pygame.image.load("./img/bread.png").convert_alpha()
sicongImg = pygame.image.load("./img/sicong.png").convert_alpha()

fpsClock = pygame.time.Clock()

# 成绩显示
count1 = 0
count2 = 0
font = pygame.font.SysFont("arial", 40)
score1 = font.render("score1:%d" % count1, True, (255, 255, 255))
score2 = font.render("score2:%d" % count2, True, (255, 255, 255))

w_width = sicongImg.get_width() - 5
w_height = sicongImg.get_width() - 5

y_width = breadImg.get_width() - 5
y_height = breadImg.get_height() - 5


# 思聪类
class Sicong:
    def __init__(self, hp=100):
        self.x = random.randint(0, width - 10)
        self.y = random.randint(0, height - 10)
        self.hp = hp

    def move(self, new_x, new_y):
        if new_x < 0:
            self.x = width - w_width
        elif new_x > width:
            self.x = 0
        else:
            self.x = new_x
        if new_y < 0:
            self.y = height - w_height
        elif new_y > height:
            self.y = 0
        else:
            self.y = new_y
        self.hp -= 1

    def eat_bread(self):
        self.hp += 20
        if self.hp > 100:
            self.hp = 100


# 面包类
class Bread:
    def __init__(self):
        self.x = random.randint(0, width)
        self.y = random.randint(0, height)

    def move(self):
        new_x = self.x + random.choice([-10])
        if new_x < 0:
            self.x = width
        else:
            self.x = new_x


# 实例化思聪和面包
sicong1 = Sicong()
sicong2 = Sicong() 

breads = [Bread() for i in range(30)]

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()  # 0为正常退出
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                sicong1.move(sicong1.x - 20, sicong1.y)
            if event.key == pygame.K_RIGHT:
                sicong1.move(sicong1.x + 20, sicong1.y)
            if event.key == pygame.K_UP:
                sicong1.move(sicong1.x, sicong1.y - 20)
            if event.key == pygame.K_DOWN:
                sicong1.move(sicong1.x, sicong1.y + 20)
            if event.key == pygame.K_a:
                sicong2.move(sicong2.x - 20, sicong2.y)
            if event.key == pygame.K_d:
                sicong2.move(sicong2.x + 20, sicong2.y)
            if event.key == pygame.K_w:
                sicong2.move(sicong2.x, sicong2.y - 20)
            if event.key == pygame.K_s:
                sicong2.move(sicong2.x, sicong2.y + 20)

    screen.blit(background, (0, 0))
    screen.blit(score2, (500, 20))  # 绘制分数
    screen.blit(score1, (0, 20))  # 绘制分数
    # 绘制面包的图案
    for item in breads:
        screen.blit(breadImg, (item.x, item.y))
        item.move()
    # 绘制思聪的图案
    screen.blit(sicongImg, (sicong1.x, sicong1.y))
    screen.blit(sicongImg, (sicong2.x, sicong2.y))

    # 当两个玩家体力都为0 或者面包全被吃掉后 游戏结束
    if (sicong1.hp < 0 and sicong2.hp <= 0) or len(breads) == 0:
        if count1 > count2:
            print("Game Over - ")
            print("玩家1胜利,共吃到%d个面包" % count1)
            sys.exit()
        elif count1 < count2:
            print("Game Over - ")
            print("玩家2胜利，共吃到%d个面包" % count2)
            sys.exit()
        elif count1 == count2:
            print("Game Over - ")
            print("平局")
            sys.exit()
    for item in breads:
        if ((sicong1.x < item.x + w_width) and (sicong1.x + w_width > item.x) and (sicong1.y < item.y + y_width) and
                (sicong1.y + w_height > item.y)):
            # 思聪的坐标加长思聪的长度和面包的坐标和面包的长度 重合时，思聪吃掉面包
            sicong1.eat_bread()
            breads.remove(item)  # 思聪吃掉面包后，删除掉该面包
            count1 = count1 + 1
            score1 = font.render("score1: %d" % count1, True, (255, 255, 255))
        elif ((sicong2.x < item.x + w_width) and (sicong2.x + w_width > item.x) and
              (sicong2.y < item.y + y_width) and (sicong2.y + w_height > item.y)):
            sicong2.eat_bread()
            breads.remove(item)  # 思聪吃掉面包后，删除掉该面包
            count2 = count2 + 1
            score2 = font.render("score2: %d" % count1, True, (255, 255, 255))
    pygame.display.update()
    pygame.display.update()
    fpsClock.tick(10)

游戏界面如下

作业二: 按奇偶排序数组

方法一：

A = [1,5,8,3,4,2]                               
                                                
sortList = sorted(A, key=lambda x: (x % 2 == 1))
print(sortList)                                 

方法二：

numList = [1, 5, 4, 2, 7, 8]                            
evenList = list(filter(lambda x: (x % 2 == 0), numList))                                          
oddList = list(filter(lambda x: (x % 2 != 0), numList)) 
result =evenList+oddList    # 再把奇数加到偶数后面                            
print(result)                                                                                                                      

作业三: 电话号码的字母组合

具体实现：

keyboard= {
    "2": "abc",
    "3": "def",
    "4": "ghi",
    "5": "jkl",
    "6": "mno",
    "7": "pqrs",
    "8": "tuv",
    "9": "wxyz"
}

def letter_compose(nums):
    letter_compose_List = []
    # 判断输入是否为空
    if len(nums) == 0:
        return []
    # # 递归出口，返回最后一个数字对应的字母
    if len(nums) == 1:
        return keyboard.get(nums[0])
    # 一直递归找到输入的最后一个数字对应的字母
    num = letter_compose(nums[1:])
    for i in keyboard.get(nums[0]):
        for j in num:
            letter_compose_List.append(i + j)
    return letter_compose_List
num = input('输入两个2~9之间的数字：')

letter_compose = letter_compose(num)
print(letter_compose)