GUI qt-designer를 이용한 기본 예제

[주인장]

# coding:utf-8

import sys
import PyQt5
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5 import uic

# UI 경로
CalUI = '../ui_files/calculator.ui'

class MainDialog(QDialog):
    def __init__(self):
        QDialog.__init__(self, None)
        uic.loadUi(CalUI, self)         # UI 로딩하기

        self.num_pushButton_1.clicked.connect(self.NumClicked) # 함수 연결하기

    def NumClicked(self):
        exist_line_text = self.q_lineEdit.text()        # 에디터의 글자 가져오기
        now_num_text = self.num_pushButton_1.text()     # 버튼에 적힌 글자 가져오기
        self.q_lineEdit.setText(exist_line_text + now_num_text)   # 에디터에 글자 출력하기

app = QApplication(sys.argv)
main_dialog = MainDialog()
main_dialog.show()
app.exec_() # 이벤트 루프 사용