Python 实现问题回答小游戏

读取问题

如下所示，我们在文本中写了一个问题，然后将其读取出来。

“黄河远上白云间，一片孤城万仞山。”的作者是谁？

王之涣

李白

白居易

杜甫

file = open("1.txt", "r")
question_coll = file.readlines()
file.close()
print(file)

运行之后发现报错，查询之后发现编码格式不正确。

设置了读取的编码格式发现可以读取文本的内容

file = open("1.txt", encoding='utf-8')

绘制回答面板

为了方便读取，新建一个类来储存文件中的问题

# 问题类
class Question:

  # 回答列表
  answer_question = []

  # 正确答案
  answer_index = 1

  """问题类"""
  def __init__(self, question):
      self.question = question

导入问题，将文件中的问题保存在qustion中

from question import Question

因为文件的格式是固定的以6为一个问题的所有行数。

将问题

questionList = []
for i in range(int(len(question_coll) / 6)):
  que_all = question_coll[i * 6: i * 6 + 6]
  que = Question(que_all[0].rstrip())
  que.answer_question = [que_all[1].rstrip(), que_all[2].rstrip(), que_all[3].rstrip(), que_all[4].rstrip()]
  que.answer_index = int(que_all[5].rstrip())
  questionList.append(que)

封装屏幕上显示文字的打印

def draw_text(window_screen, font_size, content, starting_x, starting_y, text_color=WHITE, bg_color=BLACK):
  # 绘制文字
  # 设置字体
  font = pygame.font.SysFont("方正粗黑宋简体", font_size)
  text1 = font.render(content, True, text_color, bg_color)
  window_screen.blit(text1, (starting_x, starting_y))

显示问题

draw_text(screen, 48, "知识竞赛", 180, 20)
while True:
  for event in pygame.event.get():
      if event.type == QUIT:
          pygame.quit()
          sys.exit()
  tips = "当前一共有" + str(len(questionList)) + "个问题,目前是第" + str(index) + "个。"
  draw_text(screen, 18, tips, 20, 140, bg_color=WHITE, text_color=BLACK)
  current_que = questionList[index - 1]
  question_main = "问题" + str(index) + ". " + current_que.question
  draw_text(screen, 16, question_main, 20, 200, bg_color=WHITE, text_color=BLACK)
  for i in range(len(current_que.answer_question)):
      option = str(i + 1) + ". " + current_que.answer_question[i]
      draw_text(screen, 16, option, 40, 260 + i * 40, bg_color=WHITE, text_color=BLACK)

  pygame.display.update()

这样就实现了问题的显示

回答问题

首先我们给出提示，为了方便确认问题是否回答，答案正确与否，我们在问题类中添加变量

  # 是否回答
  answeredFlg = False

  # 回答是否正确
  rightFlg = False

根据这些变量设置文字。

  if current_que.answeredFlg:
      if current_que.rightFlg:
          print("回答正确，是" + current_que.answer_question[current_que.answer_index])
      else:
          print("回答错误，正确答案是" + current_que.answer_question[current_que.answer_index])
  else:
      draw_text(screen, 16, "请按下1、2、3、4来回答答案", 40, 460, bg_color=WHITE, text_color=RED)

如果按下按键，根据答案的正确与否给与响应的提示。

if current_que.answeredFlg:
      if current_que.rightFlg:
          str1 = "回答正确，是" + current_que.answer_question[current_que.answer_index - 1]
          draw_text(screen, 16, str1, 40, 460, bg_color=WHITE, text_color=GREEN)
      else:
          str1 = "回答错误，正确答案是" + current_que.answer_question[current_que.answer_index - 1]
          draw_text(screen, 16, str1, 40, 460, bg_color=WHITE, text_color=RED)
  else:
      draw_text(screen, 16, "请按下1、2、3、4来回答答案", 40, 460, bg_color=WHITE, text_color=RED)

问题切换

为了方便用户切换问题，在窗口上添加对应的按钮。

import pygame.font


class Button:

  def __init__(self, screen, msg, start_x, start_y):
      # 设置按钮的尺寸和其他属性
      self.screen = screen
      self.width, self.height = 200, 50
      self.button_color = (0, 255, 0)
      self.text_color = (255, 255, 255)
      self.font = pygame.font.SysFont("方正粗黑宋简体", 20)

      # 创建按钮的rect对象，并使其居中
      self.rect = pygame.Rect(0, 0, self.width, self.height)
      self.rect.left = start_x
      self.rect.right = start_y
      # 按钮的标签只需创建一次
      self._prep_msg(msg)

  def _prep_msg(self, msg):
      """将msg渲染为图像，并让按钮居上"""
      self.msg_image = self.font.render(msg, True, self.text_color, self.button_color)
      self.msg_image_rect = self.msg_image.get_rect()
      self.msg_image_rect.center = self.rect.center

  def draw_button(self):
      # 绘制一个用颜色填充的按钮，在绘制文本
      self.screen.fill(self.button_color, self.rect)
      self.screen.blit(self.msg_image, self.msg_image_rect)

answer_question.py

	btn1 = Button(screen, "next", 300, 500)
  btn1.draw_button()

修改对应的按钮颜色，并添加上一个按钮。

通过是否回答和是否有下一个或者上一个控制按钮的显示

  if current_que.answeredFlg and index < len(questionList):
      btn1 = Button(screen, "下一个", 300, 500)
      btn1.draw_button()
  if index > 1:
      btn2 = Button(screen, "上一个", 50, 500)
      btn2.draw_button()

给按钮添加事件

      if event.type == pygame.MOUSEBUTTONDOWN:
          mouse_pos = pygame.mouse.get_pos()
          if btn1.rect.collidepoint(mouse_pos):
              if current_que.answeredFlg and index < len(questionList):
                  index += 1
          if btn2.rect.collidepoint(mouse_pos) and index > 1:
              index -= 1

完整代码

answer_question.py 主程序

import pygame, sys
from pygame.locals import *
from question import Question
from button import Button

# 读取问题
file = open("1.txt", encoding='utf-8')
question_coll = file.readlines()
file.close()
questionList = []
for i in range(int(len(question_coll) / 6)):
  que_all = question_coll[i * 6: i * 6 + 6]
  que = Question(que_all[0].rstrip())
  que.answer_question = [que_all[1].rstrip(), que_all[2].rstrip(), que_all[3].rstrip(), que_all[4].rstrip()]
  que.answer_index = int(que_all[5].rstrip())
  questionList.append(que)


# 颜色变量
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
# 初始化面板
pygame.init()
screen = pygame.display.set_mode((600, 600))
pygame.display.set_caption("知识竞赛")

# 当前问题
index = 1


def draw_text(window_screen, font_size, content, starting_x, starting_y, text_color=WHITE, bg_color=BLACK):
  # 绘制文字
  # 设置字体
  font = pygame.font.SysFont("方正粗黑宋简体", font_size)
  text1 = font.render(content, True, text_color, bg_color)
  window_screen.blit(text1, (starting_x, starting_y))


# 按钮
btn1 = Button(screen, "下一个", 300, 500)
btn2 = Button(screen, "上一个", 50, 500)
while True:
  answer_index = 0
  # 填充白色
  screen.fill(WHITE)
  draw_text(screen, 48, "知识竞赛", 180, 20)
  tips = "当前一共有" + str(len(questionList)) + "个问题,目前是第" + str(index) + "个。"
  draw_text(screen, 18, tips, 20, 140, bg_color=WHITE, text_color=BLACK)
  current_que = questionList[index - 1]
  for event in pygame.event.get():
      if event.type == QUIT:
          pygame.quit()
          sys.exit()
      if event.type == KEYDOWN:
          if event.key == K_1:
              answer_index = 1
          if event.key == K_2:
              answer_index = 2
          if event.key == K_3:
              answer_index = 3
          if event.key == K_4:
              answer_index = 4
      if event.type == pygame.MOUSEBUTTONDOWN:
          mouse_pos = pygame.mouse.get_pos()
          if btn1.rect.collidepoint(mouse_pos):
              if current_que.answeredFlg and index < len(questionList):
                  index += 1
          if btn2.rect.collidepoint(mouse_pos) and index > 1:
              index -= 1

  question_main = "问题" + str(index) + ". " + current_que.question
  draw_text(screen, 16, question_main, 20, 200, bg_color=WHITE, text_color=BLACK)
  for i in range(len(current_que.answer_question)):
      option = str(i + 1) + ". " + current_que.answer_question[i]
      draw_text(screen, 16, option, 40, 260 + i * 40, bg_color=WHITE, text_color=BLACK)
  if answer_index != 0:
      current_que.answeredFlg = True
      current_que.rightFlg = answer_index == current_que.answer_index
  if current_que.answeredFlg:
      if current_que.rightFlg:
          str1 = "回答正确，是" + current_que.answer_question[current_que.answer_index - 1]
          draw_text(screen, 16, str1, 40, 460, bg_color=WHITE, text_color=GREEN)
      else:
          str1 = "回答错误，正确答案是" + current_que.answer_question[current_que.answer_index - 1]
          draw_text(screen, 16, str1, 40, 460, bg_color=WHITE, text_color=RED)
  else:
      draw_text(screen, 16, "请按下1、2、3、4来回答答案", 40, 460, bg_color=WHITE, text_color=RED)
  if current_que.answeredFlg and index < len(questionList):
      btn1.draw_button()
  if index > 1:
      btn2.draw_button()
  pygame.display.update()

问题类 qustion.py

# 问题类
class Question:
  """问题类"""

  # 回答列表
  answer_question = []

  # 正确答案
  answer_index = 1

  # 是否回答
  answeredFlg = False

  # 回答是否正确
  rightFlg = False

  def __init__(self, question):
      self.question = question

按钮类 button.py

import pygame.font


class Button:

  def __init__(self, screen, msg, start_x, start_y):
      # 设置按钮的尺寸和其他属性
      self.screen = screen
      self.width, self.height = 200, 50
      self.button_color = (255, 192, 128)
      self.text_color = (255, 255, 255)
      self.font = pygame.font.SysFont("方正粗黑宋简体", 20)

      # 创建按钮的rect对象，并使其居中
      self.rect = pygame.Rect(0, 0, self.width, self.height)
      self.rect.left = start_x
      self.rect.top = start_y
      # 按钮的标签只需创建一次
      self._prep_msg(msg)

  def _prep_msg(self, msg):
      """将msg渲染为图像，并让按钮居上"""
      self.msg_image = self.font.render(msg, True, self.text_color, self.button_color)
      self.msg_image_rect = self.msg_image.get_rect()
      self.msg_image_rect.center = self.rect.center

  def draw_button(self):
      # 绘制一个用颜色填充的按钮，在绘制文本
      self.screen.fill(self.button_color, self.rect)
      self.screen.blit(self.msg_image, self.msg_image_rect)

问题文本文件 1.txt

“黄河远上白云间，一片孤城万仞山。”的作者是谁？

王之涣

李白

白居易

杜甫

1

“落霞与孤鹜齐飞”的下一句是？

携酒对情人

秋水共长天一色

抱琴开野室

林塘花月下

2 

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