PyQt5 QUdpSocket 未绑定到地址和端口

Question

def main():
    app = QCoreApplication([])
    local_ip = QHostAddress('192.168.43.126')
    port = 2359
    udp_socket = QUdpSocket()
    b = QByteArray()
    b.append('i0000,0000')
    udp_socket.writeDatagram(b, QHostAddress('192.168.43.1'), port)
    udp_socket.bind(QHostAddress('192.168.43.126'),port)
    while True:
        #print('in the while loop')
        while udp_socket.hasPendingDatagrams():
            #print('has pending datadrams ')
            s = udp_socket.readDatagram(10)
            print(s)

    app.exec_()


if __name__ == '__main__':
    main()

这不起作用套接字未绑定到端口我不知道为什么我需要让服务器等待消息但不使用信号

Answer 1

试一试：

import sys
from PyQt5.QtGui     import *
from PyQt5.QtCore    import *
from PyQt5.QtWidgets import *
from PyQt5.QtNetwork import QUdpSocket, QHostAddress

def main():
    app = QCoreApplication([])
    local_ip = QHostAddress('192.168.43.126')
    port = 2359
    udp_socket = QUdpSocket()
    b = QByteArray()
    b.append('i0000,0000')

    #udp_socket.bind(QHostAddress('192.168.43.126'),port)
    udp_socket.bind(QHostAddress.LocalHost, port)      

    #udp_socket.writeDatagram(b, QHostAddress('192.168.43.1'), port)
    udp_socket.writeDatagram(b, QHostAddress.LocalHost, port)

    while True:
        #print('in the while loop')
        while udp_socket.hasPendingDatagrams():
            #print('has pending datadrams ')
            s = udp_socket.readDatagram(10)
            print("\nQHostAddress.LocalHost", QHostAddress(QHostAddress.LocalHost).toString())
            print(s)

    app.exec_()


if __name__ == '__main__':
    main()

PyQt5 QUdpSocket 未绑定到地址和端口

PyQt5 QUdpSocket not binding to address and a port

python

pyqt5

qudpsocket