var data = [ [1, 0.1, 'a'], [2, 0.2, 'b'], [3, 0.32, 'd'], [4, 0.14, 'e'], [5, 0.15, 'f'], [6, 0.8, 'g'], [7, 0.9, 'h'], [8, 0.3, 'i'], [9, 0.15, 'j'], [10, 0.74, 'k'], [11, 0.88, 'l'], [12, 0.66, 'm'], [13, 0.77, 'n'], [14, 0.57, 'o'], [15, 0.74, 'p'], [16, 0.12, 'q'], [17, 0.95, 'r'], [18, 0.45, 's'], [19, 0.65, 't'], [20, 0.84, 'u'], [21, 0.74, 'v'], [22, 0.35, 'w'], [23, 0.84, 'x'], [24, 0.44, 'y'], [25, 0.98, 'z'] ]; var cirCol = ['#ffcdf0', '#f0aadb', '#e879c7', '#ffe190', '#ffe190', '#ff9b25', '#9effd2', '#5bde9e', '#55c28d', '#14bcb2' ] option = { backgroundColor:'#fff', title: { text: '' }, tooltip: { trigger: 'item', formatter:function(params){ return '知识点:'+params.value[2]+'
历年得分率:'+ params.value[1]+'%' } }, xAxis: { splitLine: { show: false }, axisLine: { show: false, }, axisTick: { show: false }, axisLabel: { show: false }, }, yAxis: { splitLine: { show: false }, axisLine: { show: false, }, axisTick: { show: false }, axisLabel: { show: false }, }, series: [{ name: '', data: data, type: 'scatter', symbolSize: function(data) { return data[1] * 1e2; }, label: { }, itemStyle: { normal: { shadowBlur: 10, shadowColor: 'rgba(0, 0, 0, 0.2)', shadowOffsetY: 5, color: function(params) { console.log(params) if (params.value[1] >= 0 && params.value[1] < 0.1) { return 'rgba(255,205,240,0.75)' } else if (params.value[1] >= 0.1 && params.value[1] < 0.2) { return 'rgba(240,170,219,0.75)' } else if (params.value[1] >= 0.2 && params.value[1] < 0.3) { return 'rgba(232,121,199,0.75)' } else if (params.value[1] >= 0.3 && params.value[1] < 0.4) { return 'rgba(255,225,144,0.75)' } else if (params.value[1] >= 0.4 && params.value[1] < 0.5) { return 'rgba(251,200,61,0.75)' } else if (params.value[1] >= 0.5 && params.value[1] < 0.6) { return 'rgba(255,155,37,0.75)' } else if (params.value[1] >= 0.6 && params.value[1] < 0.7) { return 'rgba(158,255,210,0.75)' } else if (params.value[1] >= 0.7 && params.value[1] < 0.8) { return 'rgba(91,222,158,0.75)' } else if (params.value[1] >= 0.8 && params.value[1] < 0.9) { return 'rgba(85,194,141,0.75)' } else if (params.value[1] >= 0.9 && params.value[1] <= 1) { return 'rgba(20,188,178,0.75)' } } } } }] };

知识点预览图