로그인

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QVBoxLayout, QGridLayout, QLineEdit, QLabel, QHBoxLayout, QDialog
from PyQt5.QtGui import *
from PyQt5.QtCore import Qt
import os

class MyApp(QWidget):

    def __init__(self):
        super().__init__()
        self.initUI()
        self.number = 0
        text = ''
        var = open('./data/ID.txt')
        while True:
              line = var.readline()
              text = text + line
              if not line: break
        var.close()
        self.ID = text
        text1 = ''
        var1 = open('./data/PW.txt')
        while True:
               line1 = var1.readline()
               text1 = text1 + line1
               if not line1: break
        var1.close()
        self.PW = text1
        print(self.PW)
        # 리스트 괄호 형태로 파일에 저장하거나 탭으로 정보를 다 넣어서 저장한뒤 그걸 가져옴


    def initUI(self):
        self.vbox2 = QVBoxLayout()

        self.dialog = QDialog()

        self.vbox = QVBoxLayout()
        self.grid = QGridLayout()
        self.hbox = QHBoxLayout()
        grid = QGridLayout()

        lblID = QLabel('아이디')
        grid.addWidget(lblID, 0, 0)

        lblPW = QLabel('비밀번호')
        grid.addWidget(lblPW, 1, 0)

        self.identity = QLineEdit()
        grid.addWidget(self.identity, 0, 1)

        self.password = QLineEdit()
        grid.addWidget(self.password, 1, 1)

        self.grid.addLayout(grid, 0, 0)

        login = QPushButton('로그인', self)
        login.setCheckable(False)
        login.toggle()
        self.hbox.addWidget(login)

        join = QPushButton('회원가입', self)
        join.setCheckable(False)
        join.toggle()
        join.clicked.connect(self.log)
        join.setStyleSheet('font: 8pt')
        join.setMaximumWidth(55)
        self.hbox.addWidget(join)

        self.grid.addLayout(self.hbox, 1, 0)

        self.setLayout(self.grid)

        self.setWindowTitle('로그인')
        self.setGeometry(300, 300, 300, 200)
        self.show()

    def log(self):
        if self.number == 0:
              self.ID.append(self.identity.text())
              self.PW.append(self.password.text())
              self.number = self.number + 1
        else:
            for i in range(self.number):
                if self.ID[i] == self.identity.text():
                    self.dlg()
                    break
                elif i == self.number - 1:
                    self.ID.append(self.identity.text())
                    self.PW.append(self.password.text())
                    self.number += 1
                    break
        self.identity.setText('')
        self.password.setText('')

        # var = open('./data/ID.txt')
        # var.write(self.ID)
        #
        # var1 = open('./data/PW.txt')
        # var1.write(self.PW)

        for i in range(self.number):
            print(self.ID[i], self.PW[i])

    def dlg(self):
        self.label = QLabel('이미 사용된 아이디 입니다', self.dialog)
        font1 = self.label.font()
        font1.setPointSize(13)
        self.label.setFont(font1)
        self.label.move(40, 70)
        closebtn = QPushButton('확인', self.dialog)
        closebtn.move(180, 140)
        closebtn.clicked.connect(self.Close)

        self.dialog.setWindowTitle('로그인')
        self.dialog.resize(270, 180)
        self.dialog.show()

    def Close(self):
        self.dialog.close()



if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = MyApp()
    sys.exit(app.exec_())