在我们制作的界面中我们经常需要将某个文件进行交互，让界面主体接收到这个文件的信号，在这里就有两种办法解决文件与界面的交互，第一个就是常用的文件选择窗口，进行创建窗口手动选择目标文件\文件夹，十分的麻烦，于是文件拖放功能就此产生。先废话不多说直接放能运行的代码:

# -*- coding: utf-8 -*-
# Code By ImportThis 2076966127
# Form implementation generated from reading ui file '文件拖放.ui'
# Code By ImportThis 2076966127
# Created by: PyQt5 UI code generator 5.14.2
# Code By ImportThis 2076966127
# WARNING! All changes made in this file will be lost!
from os import system
from PyQt5 import QtCore, QtWidgets
import winreg, subprocess, os
from PyQt5.QtWidgets import QMessageBox
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(416, 48)
        self.textEdit = QtWidgets.QTextEdit(Form)
        self.textEdit.setGeometry(QtCore.QRect(10, 10, 301, 27))
        self.textEdit.setAcceptDrops(True)
        self.textEdit.setStyleSheet("font-family:微软雅黑;")
        self.textEdit.setObjectName("textEdit")
        self.textEdit.textChanged.connect(self.editchange)
        self.textEdit.setReadOnly(False)
        self.pushButton = QtWidgets.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(320, 9, 75, 28))
        self.pushButton.setObjectName("pushButton")
        self.pushButton.clicked.connect(self.open)
        QtCore.QMetaObject.connectSlotsByName(Form)
        key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System")
        Value = winreg.QueryValueEx(key, "EnableLUA")[0]
        if Value == 1:
            path = "SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System"
            key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path, 0, winreg.KEY_ALL_ACCESS)
            winreg.SetValueEx(key, "EnableLUA", 0, winreg.REG_DWORD, 0)
            QMessageBox.information(Form, "", "即将为您重启电脑.")
            system("shutdown -r -t  10")
        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)
    def editchange(self):
        if 0 == self.textEdit.toPlainText().find('file:///'):
            self.textEdit.setText(self.textEdit.toPlainText().replace('file:///', '').replace("/", "\\"))
    def open(self):
        if os.path.exists(self.textEdit.toPlainText()):
            subprocess.Popen("start " + self.textEdit.toPlainText(), shell = True)
            self.textEdit.clear()
    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.pushButton.setText(_translate("Form", "打开"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Form = QtWidgets.QWidget()
    ui = Ui_Form()
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())
# Code By ImportThis 2076966127

思路首先有一点有个地方win10需要改注册表，之后才能正常的使用拖放所以我就写了个判断注册表这个修改完注册内容需要重启电脑才能生效所以电脑的重启我也写进去了，然后就是能直接通过拖放的形式让目标文件的路径显示在QTextEdit的内容中~
效果视频来看看bilibili我上传的

录制_2020_07_07_07_41_56_725.gif