Python3中PyQt5简单实现文件打开及保存

本文主要介绍了Python3中PyQt5简单实现文件打开及保存，分享给大家，具体如下：

# -*- coding: utf-8 -*-
 
# Form implementation generated from reading ui file 'filemanage.ui'
#
# Created by: PyQt5 UI code generator 5.12.2
#
# WARNING! All changes made in this file will be lost!
 
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QFileInfo
from PyQt5.QtWidgets import QFileDialog
 
 
class Ui_Form(object):
    save_path = ''
 
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(484, 412)
        self.open_path_text = QtWidgets.QLineEdit(Form)
        self.open_path_text.setGeometry(QtCore.QRect(40, 20, 331, 20))
        self.open_path_text.setObjectName("open_path_text")
        self.open_path_but = QtWidgets.QPushButton(Form)
        self.open_path_but.setGeometry(QtCore.QRect(380, 20, 75, 23))
        self.open_path_but.setObjectName("open_path_but")
        self.save_path_but = QtWidgets.QPushButton(Form)
        self.save_path_but.setGeometry(QtCore.QRect(380, 50, 75, 23))
        self.save_path_but.setObjectName("save_path_but")
        self.save_path_text = QtWidgets.QLineEdit(Form)
        self.save_path_text.setGeometry(QtCore.QRect(40, 50, 331, 20))
        self.save_path_text.setObjectName("save_path_text")
        self.text_value = QtWidgets.QTextEdit(Form)
        self.text_value.setGeometry(QtCore.QRect(10, 90, 461, 281))
        self.text_value.setObjectName("text_value")
        self.save_but = QtWidgets.QPushButton(Form)
        self.save_but.setGeometry(QtCore.QRect(190, 380, 75, 23))
        self.save_but.setObjectName("save_but")
 
        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)
 
    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.open_path_text.setPlaceholderText(_translate("Form", "打开地址"))
        self.open_path_but.setText(_translate("Form", "浏览"))
        self.save_path_but.setText(_translate("Form", "浏览"))
        self.save_path_text.setPlaceholderText(_translate("Form", "保存地址"))
        self.save_but.setText(_translate("Form", "保存"))
        self.open_path_but.clicked.connect(self.open_event)
        self.save_path_but.clicked.connect(self.save_event)
        self.save_but.clicked.connect(self.save_text)
 
    def open_event(self):
        _translate = QtCore.QCoreApplication.translate
        directory1 = QFileDialog.getOpenFileName(None, "选择文件", "H:/")
        print(directory1)  # 打印文件夹路径
        path = directory1[0]
        self.open_path_text.setText(_translate("Form", path))
        if path is not None:
            with open(file=path, mode='r+', encoding='utf-8') as file:
                self.text_value.setPlainText(file.read())
 
    def save_event(self):
        global save_path
        _translate = QtCore.QCoreApplication.translate
        fileName2, ok2 = QFileDialog.getSaveFileName(None, "文件保存", "H:/")
        print(fileName2)  # 打印保存文件的全部路径（包括文件名和后缀名）
        save_path = fileName2
        self.save_path_text.setText(_translate("Form", save_path))
 
    def save_text(self):
        global save_path
        if save_path is not None:
            with open(file=save_path, mode='a+', encoding='utf-8') as file:
                file.write(self.text_value.toPlainText())
            print('已保存！')
            self.text_value.clear()
 
            '''
            directory1 = QFileDialog.getExistingDirectory(self, "选择文件夹", "/")
            print(directory1)  # 打印文件夹路径
            text.setText(_translate("Form", directory1))
            fileName, filetype = QFileDialog.getOpenFileName(self, "选择文件", "/", "All Files (*);;Text Files (*.txt)")
            print(fileName, filetype)  # 打印文件全部路径（包括文件名和后缀名）和文件类型
            print(fileName)  # 打印文件全部路径（包括文件名和后缀名）
            text.setText(_translate("Form", fileName))
            fileinfo = QFileInfo(fileName)
            print(fileinfo)  # 打印与系统相关的文件信息，包括文件的名字和在文件系统中位置，文件的访问权限，是否是目录或符合链接，等等。
            file_name = fileinfo.fileName()
            print(file_name)  # 打印文件名和后缀名
            file_suffix = fileinfo.suffix()
            print(file_suffix)  # 打印文件后缀名
            file_path = fileinfo.absolutePath()
            print(file_path)  # 打印文件绝对路径（不包括文件名和后缀名）
            files, ok1 = QFileDialog.getOpenFileNames(self, "多文件选择", "/", "所有文件 (*);;文本文件 (*.txt)")
            print(files, ok1)  # 打印所选文件全部路径（包括文件名和后缀名）和文件类型
            fileName2, ok2 = QFileDialog.getSaveFileName(self, "文件保存", "/", "图片文件 (*.png);;(*.jpeg)")
            print(fileName2)  # 打印保存文件的全部路径（包括文件名和后缀名）
            '''
 
if __name__ == "__main__":
    import sys
 
    app = QtWidgets.QApplication(sys.argv)
    widget = QtWidgets.QWidget()
    ui = Ui_Form()
    ui.setupUi(widget)
    widget.show()
    sys.exit(app.exec_())

到此这篇关于Python3中PyQt5简单实现文件打开及保存的文章就介绍到这了,更多相关PyQt5 文件打开保存内容请搜索猪先飞以前的文章或继续浏览下面的相关文章希望大家以后多多支持猪先飞！