PyQt5 - 年龄最近的生日计算器

在本文中，我们将了解如何创建最接近年龄的生日计算器。年龄最接近计算器是用于获取最接近出生日期的年龄的计算器。下面是最接近年龄的计算器的样子

概念：我们可以通过获取出生日期和当前日期之间的差异来获取最接近生日的年龄，借助Python datetime 对象将保持闰年的计数，并且我们可以获得日期之间的天数。那么这些天数可以除以365.32422得到年份，那么年份的取整值就是最接近生日的年龄

GUI Implementation Steps :
1. Create a heading label that display the calculator name
2. Create label to show user to select the birth date
3. Create a QCalendarWidget object for user to select the birth date
4. Create a push button to calculate the nearest age
5. Create a label to show the calculated age

Back-End Implementation :
1. Make the calendar future date block i.e set current date as maximum date
2. Add action to the push button
3. Inside the push button action get the date from the calendar and the present date
4. Get the day, month and year from both the dates
5. Create a datetime.date object for both the dates
6. Get the difference from both the dates and get the days
7. Divide the days with 365.2422(due to leap year) to get total years
8. Get the round value of the years and show this value through label

编程需要懂一点英语

下面是实现

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import datetime
import sys
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # width of window
        self.w_width = 400
  
        # height of window
        self.w_height = 500
  
        # setting geometry
        self.setGeometry(100, 100, self.w_width, self.w_height)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for components
    def UiComponents(self):
  
        # creating head label
        head = QLabel("Age Nearest Birthday Calculator", self)
  
        head.setWordWrap(True)
  
        # setting geometry to the head
        head.setGeometry(0, 10, 400, 60)
  
        # font
        font = QFont('Times', 15)
        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
        b_label = QLabel("Select Birthday", self)
  
        # setting properties  label
        b_label.setAlignment(Qt.AlignCenter)
        b_label.setGeometry(50, 105, 300, 25)
        b_label.setStyleSheet("QLabel"
                              "{"
                              "border : 1px solid black;"
                              "background : rgba(70, 70, 70, 25);"
                              "}")
        b_label.setFont(QFont('Times', 9))
  
        # creating a calendar widget to select the date
        self.calendar = QCalendarWidget(self)
  
        # setting geometry of the calendar
        self.calendar.setGeometry(50, 130, 300, 180)
  
        # setting font to the calendar
        self.calendar.setFont(QFont('Times', 6))
  
        # getting current date
        date = QDate.currentDate()
  
        # blocking future dates
        self.calendar.setMaximumDate(date)
  
  
  
  
        # creating a push button
        calculate = QPushButton("Calculate Time", self)
  
        # setting geometry to the push button
        calculate.setGeometry(125, 340, 150, 40)
  
        # adding action to the calculate button
        calculate.clicked.connect(self.calculate_action)
  
        # creating a label to show percentile
        self.result = QLabel(self)
  
        # setting properties to result label
        self.result.setAlignment(Qt.AlignCenter)
        self.result.setGeometry(50, 400, 300, 60)
        self.result.setWordWrap(True)
        self.result.setStyleSheet("QLabel"
                                  "{"
                                  "border : 3px solid black;"
                                  "background : white;"
                                  "}")
        self.result.setFont(QFont('Arial', 11))
  
  
    def calculate_action(self):
  
        # getting birth date day
        birth = self.calendar.selectedDate()
  
        # getting year and month day of birth day
        birth_year = birth.year()
        birth_month = birth.month()
        birth_day = birth.day()
  
        # getting today date
        current = QDate.currentDate()
  
        # getting year and month day of current day
        current_year = current.year()
        current_month = current.month()
        current_day = current.day()
  
        # coverting  dates into date object
        birth_date = datetime.date(birth_year, birth_month, birth_day)
        current_date = datetime.date(current_year, current_month, current_day)
  
        # getting difference in both the dates
        difference = current_date - birth_date
  
        # getting days from the difference
        difference = difference.days
  
        # getting years from the difference
        years = difference / 365.2422
  
        # getting round value of years
        years = round(years)
  
        # setting this value with the help of label
        self.result.setText("Closest Age is : " + str(years))
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出：