PyQt5 – 数字猜谜游戏

在这篇文章中，我们将看到如何使用PyQt5创建一个数字猜测名。数字猜测游戏是指在给定的机会中猜出计算机随机选择的数字。下面是游戏的样子

**GUI的实施步骤 **

1.创建一个标题标签来显示游戏名称，设置其对齐字体和颜色

2.创建一个信息标签，提供所有的信息，设置其样式表

3.创建一个旋转框来改变猜中的数字

4.创建一个按钮来检查猜测的结果

5.创建一个开始和重置按钮，并为其添加颜色效果

**后端实施步骤 **

1.创建一个将存储随机数字的变量

2.为开始按钮添加动作

3.在开始按钮的动作中使用随机方法获得1到20的随机数

4.将文本设置为信息标签并将其颜色改为灰色

5.给检查按钮添加动作

6.在检查按钮的动作中，获得旋转框的值并与随机数进行比较

7.如果数字相等，将信息标签的颜色改为绿色，并将文本设置为 “正确”

8.否则检查是否较小，然后说数字较小，如果数字较大，再进行类似的猜测

9.为复位按钮添加动作

10.在复位动作中，将欢迎文本设置为信息标签并将其颜色设置为灰色。

下面是实现的过程

# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import random
import sys
 
 
class Window(QMainWindow):
 
    def __init__(self):
        super().__init__()
 
        # setting title
        self.setWindowTitle("Python ")
 
        # setting geometry
        self.setGeometry(100, 100, 340, 350)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
        # number
        self.number = 0
 
    # method for components
    def UiComponents(self):
 
        # creating head label
        head = QLabel("Number Guessing Game", self)
 
        # setting geometry to the head
        head.setGeometry(20, 10, 300, 60)
 
        # font
        font = QFont('Times', 14)
        font.setBold(True)
        font.setItalic(True)
        font.setUnderline(True)
 
        # setting font to the head
        head.setFont(font)
 
        # setting alignment of the head
        head.setAlignment(Qt.AlignCenter)
 
        # setting color effect to the head
        color = QGraphicsColorizeEffect(self)
        color.setColor(Qt.darkCyan)
        head.setGraphicsEffect(color)
 
        # creating a label that will give the info
        self.info = QLabel("Welcome", self)
 
        # setting geometry to the info label
        self.info.setGeometry(40, 85, 260, 60)
 
        # making the info label multi line
        self.info.setWordWrap(True)
 
        # setting font and alignment
        self.info.setFont(QFont('Times', 13))
        self.info.setAlignment(Qt.AlignCenter)
 
        # setting style sheet
        self.info.setStyleSheet("QLabel"
                                "{"
                                "border : 2px solid black;"
                                "background : lightgrey;"
                                "}")
 
        # creating a spin box to set the number
        self.spin = QSpinBox(self)
 
        # setting range to the spin box
        self.spin.setRange(1, 20)
 
        # setting geometry to the spin box
        self.spin.setGeometry(120, 170, 100, 60)
 
        # setting alignment and font
        self.spin.setAlignment(Qt.AlignCenter)
        self.spin.setFont(QFont('Times', 15))
 
        # creating a push button to check the guess number
        check = QPushButton("Check", self)
 
        # setting geometry to the push button
        check.setGeometry(130, 235, 80, 30)
 
        # adding action to the check button
        check.clicked.connect(self.check_action)
 
        # creating a start button
        start = QPushButton("Start", self)
        start.setGeometry(65, 280, 100, 40)
 
        # reset button to reset the game
        reset_game = QPushButton("Reset", self)
 
        # setting geometry to the push button
        reset_game.setGeometry(175, 280, 100, 40)
 
        # setting color effect
        color_red = QGraphicsColorizeEffect()
        color_red.setColor(Qt.red)
        reset_game.setGraphicsEffect(color_red)
 
        color_green = QGraphicsColorizeEffect()
        color_green.setColor(Qt.darkBlue)
        start.setGraphicsEffect(color_green)
 
        # adding action to the  button
        start.clicked.connect(self.start_action)
        reset_game.clicked.connect(self.reset_action)
 
    def start_action(self):
 
        # making label green
        self.info.setStyleSheet("QLabel"
                                "{"
                                "border : 2px solid black;"
                                "background : lightgrey;"
                                "}")
 
        # creating random number
        self.number = random.randint(1, 20)
 
        # setting text to the info label
        self.info.setText("Try to guess number between 1 to 20")
 
 
    def check_action(self):
 
        # get the spin box number
        user_number = self.spin.value()
 
        # check the value
        if user_number == self.number:
 
            # setting text to the info label
            self.info.setText("Correct Guess")
            # making label green
            self.info.setStyleSheet("QLabel"
                                    "{"
                                    "border : 2px solid black;"
                                    "background : lightgreen;"
                                    "}")
 
        elif user_number < self.number:
 
            # giving hint
            self.info.setText("Your number is smaller")
 
        else:
 
            # giving hint
            self.info.setText("Your number is bigger")
 
 
    def reset_action(self):
        # making label green
        self.info.setStyleSheet("QLabel"
                                "{"
                                "border : 2px solid black;"
                                "background : lightgrey;"
                                "}")
 
        # setting text to the info label
        self.info.setText("Welcome")
 
 
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出:

代码的 时间复杂度 是： O(1). 这是因为代码只执行少数操作，需要非常少的时间来运行任务。

代码的 空间复杂度 是： O(1)。 这是因为该代码没有创建任何需要额外内存的新对象或变量。