from PyQt5 import QtCore, QtGui, QtWidgets class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(382, 500) MainWindow.setMinimumSize(QtCore.QSize(382, 500)) MainWindow.setMaximumSize(QtCore.QSize(382, 500)) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.label = QtWidgets.QLabel(self.centralwidget) self.label.setGeometry(QtCore.QRect(30, 40, 18, 12)) self.label.setObjectName("label") self.label_2 = QtWidgets.QLabel(self.centralwidget) self.label_2.setGeometry(QtCore.QRect(200, 30, 51, 31)) self.label_2.setObjectName("label_2") self.label_3 = QtWidgets.QLabel(self.centralwidget) self.label_3.setGeometry(QtCore.QRect(20, 80, 30, 12)) self.label_3.setObjectName("label_3") self.label_4 = QtWidgets.QLabel(self.centralwidget) self.label_4.setGeometry(QtCore.QRect(200, 70, 51, 31)) self.label_4.setObjectName("label_4") self.pushButton = QtWidgets.QPushButton(self.centralwidget) self.pushButton.setGeometry(QtCore.QRect(290, 430, 71, 41)) self.pushButton.setObjectName("pushButton") self.rz = QtWidgets.QTextEdit(self.centralwidget) self.rz.setGeometry(QtCore.QRect(10, 290, 200, 191)) self.rz.setObjectName("rz") self.label_5 = QtWidgets.QLabel(self.centralwidget) self.label_5.setGeometry(QtCore.QRect(110, 120, 81, 31)) self.label_5.setObjectName("label_5") self.label_6 = QtWidgets.QLabel(self.centralwidget) self.label_6.setGeometry(QtCore.QRect(110, 190, 81, 31)) self.label_6.setObjectName("label_6") self.label_7 = QtWidgets.QLabel(self.centralwidget) self.label_7.setGeometry(QtCore.QRect(110, 240, 81, 31)) self.label_7.setObjectName("label_7") self.groupBox = QtWidgets.QGroupBox(self.centralwidget) self.groupBox.setGeometry(QtCore.QRect(10, 110, 91, 161)) self.groupBox.setObjectName("groupBox") self.xz = QtWidgets.QRadioButton(self.groupBox) self.xz.setGeometry(QtCore.QRect(10, 120, 89, 16)) self.xz.setObjectName("xz") self.sc = QtWidgets.QRadioButton(self.groupBox) self.sc.setGeometry(QtCore.QRect(10, 70, 89, 16)) self.sc.setObjectName("sc") self.zx = QtWidgets.QRadioButton(self.groupBox) self.zx.setGeometry(QtCore.QRect(10, 20, 89, 16)) self.zx.setObjectName("zx") self.IP = QtWidgets.QLineEdit(self.centralwidget) self.IP.setGeometry(QtCore.QRect(60, 29, 131, 31)) self.IP.setObjectName("IP") self.dk = QtWidgets.QLineEdit(self.centralwidget) self.dk.setGeometry(QtCore.QRect(230, 30, 61, 31)) self.dk.setObjectName("dk") self.zh = QtWidgets.QLineEdit(self.centralwidget) self.zh.setGeometry(QtCore.QRect(60, 70, 131, 31)) self.zh.setObjectName("zh") self.mm = QtWidgets.QLineEdit(self.centralwidget) self.mm.setGeometry(QtCore.QRect(230, 70, 131, 31)) self.mm.setObjectName("mm") self.mm.setEchoMode(QtWidgets.QLineEdit.Password) self.ml = QtWidgets.QTextEdit(self.centralwidget) self.ml.setGeometry(QtCore.QRect(180, 120, 181, 61)) self.ml.setObjectName("ml") self.bd = QtWidgets.QLineEdit(self.centralwidget) self.bd.setGeometry(QtCore.QRect(180, 190, 181, 31)) self.bd.setObjectName("bd") self.yc = QtWidgets.QLineEdit(self.centralwidget) self.yc.setGeometry(QtCore.QRect(180, 240, 181, 31)) self.label_8 = QtWidgets.QLabel(self.centralwidget) self.label_8.setGeometry(QtCore.QRect(280, 380, 81, 21)) self.label_8.setStyleSheet("color: rgb(255, 0, 0);") self.label_8.setObjectName("label_8") self.yc.setObjectName("yc") self.zx.setChecked(True) self.dk.setText("22") self.zh.setText("root") self.bd.setEnabled(False) self.yc.setEnabled(False) MainWindow.setCentralWidget(self.centralwidget) self.retranslateUi(MainWindow) self.zx.clicked.connect(self.zxml) self.sc.clicked.connect(self.sx) self.xz.clicked.connect(self.sx) self.pushButton.clicked.connect(self.linux) QtCore.QMetaObject.connectSlotsByName(MainWindow) def zxml(self): self.bd.setEnabled(False) self.yc.setEnabled(False) self.ml.setEnabled(True) def sx(self): self.bd.setEnabled(True) self.yc.setEnabled(True) self.ml.setEnabled(False) def linux(self): import os import sys aa=os.path.split(os.path.realpath(sys.argv[0])) self.rz.setText("") dk=int(self.dk.text()) zh=self.zh.text() mm=self.mm.text() ml=self.ml.toPlainText() if os.path.exists(aa[0]+"/log.txt"): os.remove(aa[0]+"/log.txt") if self.mm.text()=="" and self.IP.text()=="": self.label_8.setText("密码不能为空！") elif self.IP.text()=="": self.label_8.setText("IP不能为空！") else: a = self.IP.text() self.label_8.setText("") def hanshu(b): import paramiko #paramiko.util.log_to_file("c:/paramiko.log") ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) try: ssh.connect(b, dk, zh, mm,timeout=3) QApplication.processEvents() if self.zx.isChecked()==True: stdin, stdout, stderr = ssh.exec_command(ml)#执行命令行 self.rz.setText(self.rz.toPlainText()+b+"执行成功"+"\n")###多线程时这条执行不了，报错。。 print("a") with open(aa[0]+"/log.txt", 'a') as f: f.write(stdout.read().decode('utf-8')+"\n") ssh.close() elif self.sc.isChecked()==True: ftp = ssh.open_sftp() ftp.put(self.bd.text(),self.yc.text())#上传文件 self.rz.setText(self.rz.toPlainText()+b+"执行成功"+"\n")###多线程时这条执行不了，报错。。 with open(aa[0]+"/log.txt", 'a') as f: f.write("执行成功\n") ftp.close() ssh.close() elif self.xz.isChecked()==True: ftp = ssh.open_sftp() ftp.get(self.yc.text(),self.bd.text())#下载文件 self.rz.setText(self.rz.toPlainText()+b+"执行成功"+"\n")###多线程时这条执行不了，报错。。 with open(aa[0]+"/log.txt", 'a') as f: f.write("执行成功\n") ftp.close() ssh.close() except: print (b+"无法连接"+"\n") self.rz.setText(self.rz.toPlainText()+b+"无法连接"+"\n")###多线程时这条执行不了，报错。。 with open(aa[0]+"/log.txt", 'a') as f: f.write(b+"无法连接"+"\n"+"\n") sz=[] for ip in a.split(','): if '-' in ip: s1, s2 = ip.rsplit('.', 1) start, end = map(int, s2.split('-')) for num in range(start, end+1): r=s1+'.'+str(num) sz.append(r) #aa=threading.Thread(target=hanshu,args=(b,)) #aa.start() #hanshu(b) else: sz.append(r) #hanshu(ip) import threading for b in sz: print(b) t=threading.Thread(target=hanshu,args=(b,)) t.start() def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate("MainWindow", "Linux管理工具")) self.label.setText(_translate("MainWindow", "IP:")) self.label_2.setText(_translate("MainWindow", "端口:")) self.label_3.setText(_translate("MainWindow", "账号:")) self.label_4.setText(_translate("MainWindow", "密码:")) self.pushButton.setText(_translate("MainWindow", "执行")) self.label_5.setText(_translate("MainWindow", "输入命令:")) self.label_6.setText(_translate("MainWindow", "本地路径:")) self.label_7.setText(_translate("MainWindow", "远程路径:")) self.groupBox.setTitle(_translate("MainWindow", "操作:")) self.xz.setText(_translate("MainWindow", "下载文件")) self.sc.setText(_translate("MainWindow", "上传文件")) self.zx.setText(_translate("MainWindow", "执行命令")) from PyQt5.QtWidgets import QApplication , QMainWindow import sys if __name__ == '__main__': app = QApplication(sys.argv) mainWindow = QMainWindow() ui = Ui_MainWindow() ui.setupUi(mainWindow) mainWindow.show() sys.exit(app.exec_())

The error message is as follows: `QObject: Cannot create children for a parent that is in a different thread.
(Parent is QTextDocument(0x27e4150), parent's thread is QThread(0xc306a0), curre
nt thread is QThread (0xc0eca0)`

Please help me modify multi-threading or give me some proof. I just want him to output the log into the text box. . .