option = { tooltip: { trigger: 'axis', /*axisPointer: { type: 'cross', label: { backgroundColor: '#6a7985' } }*/ }, xAxis: { type: 'category', boundaryGap: false, data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] }, yAxis: { type: 'value' }, visualMap: { show: false, type: 'piecewise', seriesIndex: 0, //控制series 对应的区域 pieces: [{ gt: 920, color: 'green' }, { gt: 0, lt: 920, color: 'red' }] }, series: [{ data: [820, 932, 901, 934, 1290, 1330, 1320], smooth: true, type: 'line' }] };