option = { color: ['#1195f4', '#dbf0fc'], title : { text: '某地区蒸发量和降水量', subtext: '纯属虚构' }, tooltip : { trigger: 'axis', formatter: '{b}<br> {a}: {c}' }, legend: { data:['蒸发量'] }, toolbox: { show : true }, xAxis : [ { type : 'category', data : ['1月','2月','3月','4月','5月'], splitLine: { lineStyle: { opacity: 0.8 } } } ], yAxis : [ { type : 'value', z: 200 } ], series : [ { name:'蒸发量', type:'bar', barGap: '-100%', data:[22, 24, 35, 46, 57] }, { name:'', type:'bar', data:[21, 23, 34, 45, 56], itemStyle: { normal: { color: '#dbf0fc' }, emphasis: { color: '#dbf0fc' } } } ] };