Pyside QProcess需要帮助

self.proc = QtCore.QProcess(self)
self.te   = QTextEdit(self)
self.btn  = QPushButton(\"Execute\", self)
self.btn.clicked.connect(self.__event_btn)

def __event_btn(self):
    w_dir = \"\" # This set to my working directory where my C files are
    args  = [\"-o\", \"MyFile\", \"MyFile.c\"]
    cmd   = \"gcc\"

    self.proc.setWorkingDirectory(dir)
    self.proc.readyReadStandardOutput.connect(self.__read)
    self.proc.closeWriteChannel()
    self.proc.setReadChannel(QtCore.QProcess.StanfardOutput())
    self.proc.start(cmd, args)

def __read(self):
    self.te.setText(self.proc.readAllStandardOutput)