function random(min, max) {
    return min + Math.floor((max - min + 1) * Math.random());
}

var CalculatorChannel = new MessageChannel();
var calculator = CalculatorChannel.port1;
var numGenerator = CalculatorChannel.port2;

calculator.onmessage = function(event) {
    //console.log("port1收到来自port2的数据：" + event.data);
    var d = event.data;
    console.log('num1: ' + d.num1, 'num2: ' + d.num2);
    var sum = d.num1 + d.num2;
    calculator.postMessage(sum)
}

numGenerator.onmessage = function(event) {
    //console.log("port2收到来自port1的数据：" + event.data);
    console.log('结果为：' + event.data);
}

// 生成数字
setInterval(() => {
   numGenerator.postMessage({
       num1: random(1, 10),
       num2: random(1, 10)
   }); 
}, 1000);

运行结果