Echars 阻止事件冒泡

myChart.on('click', function (params) {
    console.log(params);
    console.log( 'in|window-Event',window.event)
    console.log( 'in|Event',event)
    // window.event.cancelBubble = true;
    event.cancelBubble = true;
    console.log( 'in|cancelBubble',event.cancelBubble)
});