极客教程PyQt5 – 年龄最近的生日计算器
在这篇文章中，我们将看到我们如何创建一个年龄最近的生日计算器。年龄最近的计算器是用来获取与出生日期最接近的年龄的计算器。下面是年龄最近的计算器的样子
概念： 我们可以通过获得出生日期和现在日期之间的差异来获得年龄最近的生日，在python的帮助下，日期对象将保持闰年计数，我们可以获得日期之间的天数。然后这些天数可以除以365.32422得到年数，然后年数的整数值将是最接近生日的年龄。
GUI实施步骤：
1.创建一个标题标签，显示计算器的名称
2.创建标签以显示用户选择出生日期。
3.创建一个QCalendarWidget对象让用户选择出生日期
4.创建一个按钮来计算最近的年龄
5.创建一个标签来显示计算出的年龄
**后端实现： **
1.创建一个日历的未来日期块，即 “未来”。使日历成为未来日期块，即设置当前日期为最大日期
2.为按钮添加动作
3.在按钮动作中，从日历中获取日期和当前日期
4.从这两个日期中获取日、月和年
5.为这两个日期创建一个datetime.date对象
6.从这两个日期中获取差值并得到天数
7.用365.24除以天数。用365.2422（由于闰年）除以天数，得到总年数
8.获取年份的整数，并通过标签显示这个值
以下是实现方法
# 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()
# converting 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())