markline下面的属性 data : [ [ {name: '标线1起点', value: 100, x: 50, y: 20}, {name: '标线1终点', x: 150, y: 120} ], [ {name: '标线2起点', value: 200, x: 30, y: 80}, {name: '标线2终点', x: 270, y: 190} ], ... ]
