echarts重复加载

https://blog.csdn.net/goodluck_mh/article/details/54603950

点击查询 第二次渲染echarts时渲染失败

        	var myChart = null;
        	var div_ = document.getElementById("messageTimeTrendChart");
        	div_.removeAttribute("_echarts_instance_");
        	myChart = echarts.init(div_);