PyQt5文件读写操作-白红宇

PyQt5文件读写操作

阅读量：4097 次

发布时间：2019-05-25

本文共 2217 字，大约阅读时间需要 7 分钟。

#!import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *from PyQt5.uic import loadUiclass fileClass(QMainWindow):    def __init__(self):        super(fileClass, self).__init__()        self.initUI()        self.fname = []    def initUI(self):        self.uipage = loadUi('./fileUI.ui', self)        self.uipage.actionOpen.triggered.connect(self.openFileHandle)        self.uipage.actionSave.triggered.connect(self.saveFileHandle1)    def openFileHandle(self):        print('open file')        self.fname = QFileDialog.getOpenFileName(self, 'Open File', './', 'Txt (*.txt)')        if self.fname[0]:            with open(self.fname[0], 'r', encoding='utf-8') as f:                self.uipage.plainTextEdit.setPlainText(f.read())                f.close()    def saveFileHandle(self):        print('save file')        self.fname = QFileDialog.getSaveFileName(self, 'Write File', './', 'All(*.*)')        if self.fname[0]:            with open(self.fname[0], 'w', encoding='utf-8') as f:                datatmp = self.uipage.plainTextEdit.toPlainText()                f.write(datatmp)                f.close()    def saveFileHandle1(self):        try:            if self.fname[0]:                with open(self.fname[0], 'w', encoding='utf-8') as f:                    datatmp = self.uipage.plainTextEdit.toPlainText()                    f.write(datatmp)                    f.close()        except:            print( '请先打开文件')if __name__ == '__main__':    app = QApplication(sys.argv)    mw = fileClass()    mw.show()    sys.exit(app.exec_())

fileUI.ui文件内容为