Echart中的柱状图、折线图的纵坐标详解
用官网的例子来解释： 
option = {
tooltip : {
trigger: 'axis'
},
legend: {
data:['蒸发量','降水量','最低气温','最高气温']
},
toolbox: {
show : true,
feature : {
mark : {show: true},
dataView : {show: true},
magicType : {show: true, type: ['line', 'bar']},
restore : {show: true},
saveAsImage : {show: true}
}
},
xAxis : [
{
type : 'category',
position: 'bottom',
boundaryGap: true,
axisLine : { // 轴线
show: true,
lineStyle: {
color: 'green',
type: 'solid',
width: 2
}
},
axisTick : { // 轴标记
show:true,
length: 10,
lineStyle: {
color: 'red',
type: 'solid',
width: 2
}
},
axisLabel : {
show:true,
interval: 'auto', // {number}
rotate: 45,
margin: 8,
formatter: '{value}月',
textStyle: {
color: 'blue',
fontFamily: 'sans-serif',
fontSize: 15,
fontStyle: 'italic',
fontWeight: 'bold'
}
},
splitLine : {
show:true,
lineStyle: {
color: '#483d8b',
type: 'dashed',
width: 1
}
},
splitArea : {
show: true,
areaStyle:{
color:['rgba(144,238,144,0.3)','rgba(135,200,250,0.3)']
}
},
data : [
'1','2','3','4','5',
{
value:'6',
textStyle: {
color: 'red',
fontSize: 30,
fontStyle: 'normal',
fontWeight: 'bold'
}
},
'7','8','9','10','11','12'
]
},
{
type : 'category',
data : ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']
}
],
yAxis : [
{
type : 'value',
position: 'left',
min: 0,
max: 300,
splitNumber: 4,
boundaryGap: [0,0.1],
axisLine : { // 轴线
show: true,
lineStyle: {
color: 'red',
type: 'dashed',
width: 2
}
},
axisTick : { // 轴标记
show:true,
length: 10,
lineStyle: {
color: 'green',
type: 'solid',
width: 2
}
},
axisLabel : {
show:true,
interval: 'auto', // {number}
rotate: -45,
margin: 18,
formatter: '{value} ml', // Template formatter!
textStyle: {
color: '#1e90ff',
fontFamily: 'verdana',
fontSize: 10,
fontStyle: 'normal',
fontWeight: 'bold'
}
},
splitLine : {
show:true,
lineStyle: {
color: '#483d8b',
type: 'dotted',
width: 2
}
},
splitArea : {
show: true,
areaStyle:{
color:['rgba(255,215,0,0.3)','rgba(205,92,92,0.3)','rgba(255,215,0,0.3)']
}
}
},
{
type : 'value',
splitNumber: 10,
axisLabel : {
formatter: function (value) {
// Function formatter
return value + ' °C'
}
},
splitLine : {
show: false
}
}
],
series : [
{
name: '蒸发量',
type: 'bar',
data:[2.0, 4.9, 7.0, 23.2, 25.6, 76.7, 135.6, 162.2, 32.6, 20.0, 6.4, 3.3]
},
{
name: '降水量',
type: 'bar',
data: [2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3]
},
{
name:'最低气温',
type: 'line',
yAxisIndex: 1,
data: [2.0, 2.2, 3.3, 4.5, 6.3, 10.2, 20.3, 23.4, 23.0, 16.5, 12.0, 6.2]
},
{
name:'最高气温',
type: 'line',
xAxisIndex: 1,
yAxisIndex: 1,
data: [12.0, 12.2, 13.3, 14.5, 16.3, 18.2, 28.3, 33.4, 31.0, 24.5, 18.0, 16.2]
}
]
};
官网链接