如下JS,聚合报表中想取到block1对象,应该怎么写,block1是一个仪表盘var color;var num = now/ all;console.log(now);console.log(all);console.log(num);if(num<0.75){color = 'red'; }if(num>0.9 && num<1){color = 'yellow'; }if(num>1){color = 'green'; }var dashboard = fr.dashboard.getDashboardByName("block1");setInterval(function() {dashboard.stroke = color}, 500);