<div id="result">暂无消息</div> <script src="../dist/cross-window-emitter.min.js"></script> <script> var resultEl = document.getElementById("result"); var stopBtnEl = document.getElementById("stopBtn"); function onMessage(value) { resultEl.innerHTML = "接受消息:" + value; } crossWindowEmitter.on('msg', onMessage); crossWindowEmitter.setPollingInterval('msg', 3000); stopBtnEl.onclick = function () { crossWindowEmitter.off('msg'); resultEl.innerHTML = "已停止监听"; } </script>