if (typeof SharedWorker !== "undefined") {
    const worker = new SharedWorker('/src/worker.js')
    worker.port.onmessage = (e) => {
        console.log('worker.port.onmessage:', e.data)
    }
    worker.port.start()
    const button = document.createElement('button')
    button.innerText = 'click'
    button.onclick = () => {
        worker.port.postMessage('hello, worker')
    }
    document.body.appendChild(button)
} else {
    console.log('当前浏览器不支持webworker')
}