Python ui interface design (2)

Take addition, subtraction, multiplication and division as an example, use pycharm

1. Design interface

design home page

Click tools->External Tools->Qt Designer, add four buttons, page 1, page 2, page 3, page 4, save as shouye.ui

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Use pyuic5 -o shouye.py shouye.ui -x in the terminal to convert the ui file to a .py file

page 1

Realize the addition of two numbers, number 1 and number 2 are labels, the number input box is LineEdit, the result is PushButton, and the result output box is TextEdit.

Add link relationship:

Add some code in setupUi(), where add is the function name.

self.pushButton.clicked.connect(self.add)

Get the content of LineEdit

self.lineEdit.text()

Get the content and input content of TextEdit

self.textEdit.toPlainText()
self.textEdit.setText('要输入的内容')

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Page 2, Page 3, Page 4 Same as above

2. Jump between different pages

Import the py files of each page in the main interface

from add import *    # py文件名
from sub import *
from mul import *
from dev import *

Change the object and QtWidgets.QMainWindow of the main interface, and modify the class names of each sub-interface so as not to overlap with the class names of the main interface, and make the following definitions:

class Ui_MainWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super(Ui_MainWindow,self).__init__()
        self.setupUi(self)
        self.retranslateUi(self)

class Add(QtWidgets.QMainWindow):
    def __init__(self):
        super(Add,self).__init__()
        self.setupUi(self)
        self.retranslateUi(self)

class Sub(QtWidgets.QMainWindow):
    def __init__(self):
        super(Sub,self).__init__()
        self.setupUi(self)
        self.retranslateUi(self)

class Mul(QtWidgets.QMainWindow):
    def __init__(self):
        super(Mul,self).__init__()
        self.setupUi(self)
        self.retranslateUi(self)

class Dev(QtWidgets.QMainWindow):
    def __init__(self):
        super(Dev,self).__init__()
        self.setupUi(self)
        self.retranslateUi(self)

Set the home page button to jump

self.pushButton.clicked.connect(self.yemian1)
self.pushButton_2.clicked.connect(self.yemian2)
self.pushButton_3.clicked.connect(self.yemian3)
self.pushButton_4.clicked.connect(self.yemian4)

And design each page jump function

def yemian1(self):
    ui_add.show()
    MainWindow.close()
def yemian2(self):
    ui_sub.show()
    MainWindow.close()
def yemian3(self):
    ui_mul.show()
    MainWindow.close()
def yemian4(self):
    ui_dev.show()
    MainWindow.close()

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Set the object of each page jump in the page

ui_add=Add()   # 类名
ui_sub=Sub()
ui_mul=Mul()
ui_dev=Dev()

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