pyqt5窗口跳转

如何在窗体A里点击按钮跳转到窗体B

窗口A是Main Window类型，窗口B不能是Main Window,否则会报错，可以是Widget

1、窗体B 的UI文件

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'tableInfoUi.ui'
#
# Created by: PyQt5 UI code generator 5.9
#
# WARNING! All changes made in this file will be lost!

from PyQt5 import QtCore, QtGui, QtWidgets

class tableInfoUi(object):
    def setupUi(self, infoForm):
        infoForm.setObjectName("infoForm")
        infoForm.resize(1033, 276)
        self.tableInfo = QtWidgets.QTableWidget(infoForm)
        self.tableInfo.setGeometry(QtCore.QRect(10, 20, 1001, 192))
        self.tableInfo.setRowCount(1)
        self.tableInfo.setColumnCount(10)
        self.UiStyle()  # 表格样式
        self.tableInfo.setObjectName("tableInfo")
        self.exitBtn = QtWidgets.QPushButton(infoForm)
        self.exitBtn.setGeometry(QtCore.QRect(400, 240, 93, 28))
        self.exitBtn.setObjectName("exitBtn")

        self.retranslateUi(infoForm)
        QtCore.QMetaObject.connectSlotsByName(infoForm)

    def retranslateUi(self, infoForm):
        _translate = QtCore.QCoreApplication.translate
        infoForm.setWindowTitle(_translate("infoForm", "Form"))
        self.exitBtn.setText(_translate("infoForm", "退出"))

    def UiStyle(self):
        horizontalHeader = ['id','温度','湿度','黄','红','绿','电流','电压','ip','时间']  # 表头内容
        self.tableInfo.setHorizontalHeaderLabels(horizontalHeader)

2、窗体B数据处理

import sys
import os.path
from PyQt5.QtWidgets import (QMainWindow, QDialog, QWidget, QAction, QHBoxLayout, QVBoxLayout, QGridLayout,  QToolTip,
                             QPushButton, QMessageBox, QDesktopWidget, QApplication, QLabel, QTableWidget, QTableWidgetItem,
                             QFrame, QComboBox, QAbstractItemView, QHeaderView, QLineEdit)
from PyQt5.QtCore import (QCoreApplication, Qt, QRect, QSize)
from PyQt5.QtGui import (QIcon, QFont, QColor, QBrush, QTextCursor, QPixmap)
from PyQt5 import QtCore, QtGui, QtWidgets
from MysqlHelper import MysqlHelper
from tableInfoUi import tableInfoUi
class tableInfoModel(QWidget):
    def __init__(self,id):
        super(tableInfoModel, self).__init__()
        self.tableId=id
        self.helper = MysqlHelper()
        self.viewUi = tableInfoUi()
        self.main()

    def main(self):
        self.viewUi.setupUi(self)
        self.listData(self.tableId)
        self.viewUi.exitBtn.clicked.connect(self.exit)
        self.show()

    def listData(self,id):
        # self.viewUi.viewWidget.setRowCount(0)
        id=str(id)
        sql="select * from test where id="+id
        rs=self.helper.fetchone(sql)
        for colum_number, data in enumerate(rs):
            self.viewUi.tableInfo.setItem(0, colum_number, QtWidgets.QTableWidgetItem(str(data)))
    # 关闭窗口
    def exit(self):
        self.close()
if __name__ == '__main__':
    app = QApplication(sys.argv)
    tableInfoModel = tableInfoModel()
    sys.exit(app.exec_())

3、窗体A内 定义触发按钮方法

    # 查看
    def viewTable(self,id):
        self.tableInfoModel = tableInfoModel(id)
        self.tableInfoModel.show()

viewBtn.clicked.connect(lambda: self.viewTable(id))

4、效果