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我已经遵循了一个简单的教程,使用qt设计器创建一个基本的gui,并将其纳入python。然后我做了一个简单的python脚本,它不断地从串口读取换行符并将它们打印到终端。我想把它们结合起来,但是我担心我对pyqt4的工作原理的理解,或者对于自己的类来说,太缺乏完成这样一个简单的任务。对于初学者,我想要完成的是连续打印输入的串行数据。我试图将串行打印循环移动到python脚本的不同区域,但会导致窗口挂起。什么是正确的方法来做到这一点? 的PyQt代码:建设简单的终端pyqt4和pyserial如何更新文本浏览器
from PyQt4 import QtCore, QtGui
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName(_fromUtf8("MainWindow"))
MainWindow.resize(400, 300)
self.centralWidget = QtGui.QWidget(MainWindow)
self.centralWidget.setObjectName(_fromUtf8("centralWidget"))
self.verticalLayout = QtGui.QVBoxLayout(self.centralWidget)
self.verticalLayout.setMargin(11)
self.verticalLayout.setSpacing(6)
self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
self.textBrowser = QtGui.QTextBrowser(self.centralWidget)
self.textBrowser.setObjectName(_fromUtf8("textBrowser"))
self.verticalLayout.addWidget(self.textBrowser)
self.pushButton = QtGui.QPushButton(self.centralWidget)
self.pushButton.setObjectName(_fromUtf8("pushButton"))
self.verticalLayout.addWidget(self.pushButton)
MainWindow.setCentralWidget(self.centralWidget)
self.menuBar = QtGui.QMenuBar(MainWindow)
self.menuBar.setGeometry(QtCore.QRect(0, 0, 400, 21))
self.menuBar.setObjectName(_fromUtf8("menuBar"))
MainWindow.setMenuBar(self.menuBar)
self.mainToolBar = QtGui.QToolBar(MainWindow)
self.mainToolBar.setObjectName(_fromUtf8("mainToolBar"))
MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.mainToolBar)
self.statusBar = QtGui.QStatusBar(MainWindow)
self.statusBar.setObjectName(_fromUtf8("statusBar"))
MainWindow.setStatusBar(self.statusBar)
self.textBrowser.append("blabla")
self.retranslateUi(MainWindow)
QtCore.QObject.connect(self.pushButton, QtCore.SIGNAL(_fromUtf8("clicked()")), MainWindow.close)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None))
self.pushButton.setText(_translate("MainWindow", "Close", None))
self.textBrowser.append("blabla")
if __name__ == "__main__":
import sys
import serial
ser = serial.Serial()
ser.baudrate = 115200
ser.port = 'COM6'
ser.open()
app = QtGui.QApplication(sys.argv)
MainWindow = QtGui.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
ui.textBrowser.append(str(ser.readline()))
sys.exit(app.exec_())
串行代码:
import serial
ser = serial.Serial()
ser.baudrate = 115200
ser.port = 'COM6'
ser.open()
while True:
print(ser.readline()) # read a '\n' terminated line