ohos.net.socket (Socket连接)链接不上

onInit(){

        let udp = socket.constructUDPSocketInstance();
        udp.bind({address: '192.168.199.205', port: 8888, family: 1}, err => {
            if (err) {
                console.log('bind fail');
                this.message = '失败';
                this.error = err.message;
                return;
            }
            this.message = '成功';
        })

    }
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