又寫了一個pyqt4的小工具主要用來學習

部分代碼：

# -*- coding: utf-8 -*-"""Module implementing PortScan."""from PyQt4.QtCore import pyqtSignaturefrom PyQt4.QtGui import QDialogfrom PyQt4 import QtGui,QtCorefrom Ui_PortScan import Ui_PortScanimport socketclass PortScan(QDialog, Ui_PortScan):    """    Class documentation goes here.    """    def __init__(self, parent=None):        """        Constructor                @param parent reference to the parent widget (QWidget)        """        QDialog.__init__(self, parent)        self.setupUi(self)       # QtCore.QObject.connect(self.pushButton,QtCore.SIGNAL("clicked()"),self.on_pushButton_clicked)    @pyqtSignature("")    def on_pushButton_clicked(self):        for ip in self.getiplist():            self.socket_port(ip)    def getiplist(self):        self.startnum = int(self.ip2num(str(self.startlineEdit.text())))        self.endnum = int(self.ip2num(str(self.endlineEdit.text())))        iplist = []        for num in range(self.startnum,self.endnum+1):            ip = self.num2ip(num)            iplist.append(ip)        return iplist    def ip2num(self,ip):        ip = [int(x) for x in ip.split('.')]        return ip[0]<<24|ip[1]<<16|ip[2]<<8|ip[3]    def num2ip(self,num):        return '%s.%s.%s.%s' % (  (num & 0xff000000) >> 24,                                  (num & 0x00ff0000) >> 16,                                  (num & 0x0000ff00) >> 8,                                  num & 0x000000ff)    def socket_port(self,ip):        port = int(self.portlineEdit.text())        try:            self.messagelabel.setText(u"正在掃描IP:%s:%d..."%(ip,port))            s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)            s.connect((ip,port))            self.textEdit.append('IP:%s:%d Open' % (ip,port))        except:            self.textEdit.append('IP:%s:%d Closed' % (ip,port))if __name__ == "__main__":    import sys    app = QtGui.QApplication(sys.argv)    ui = PortScan()    ui.show()    sys.exit(app.exec_())