myChart.on('mouseover', function(params) {
    stopTimer();
});
myChart.on('mouseout', function(params) {
    startTimer();
});
var timer;
function doing() {
    let option = myChart.getOption();
    option.series[0].startAngle = option.series[0].startAngle - 1;
    myChart.setOption(option);
}
function startTimer() {
    timer = setInterval(doing, 5000);
}
function stopTimer() {
    clearInterval(timer);
    xzTimer = null;
}
setTimeout(startTimer, 500);Done!
 
 
                     
            
        













 
                    

 
                 
                    