vue使用echarts图表

1、安装echarts依赖
npm install echarts --save

2、在main.js全局引入

import echarts from 'echarts'

Vue.prototype.$echarts = echarts

3、进入echarts官网，找到你想要图表

4、在vue的template中写入一个div放图表

<div id="myChart" :style="{width: '300px', height: '300px'}"></div>

5、在script的methods的里面自己定义一个方法
例：

drawLine () {
this.chartPie = echarts.init(document.getElementById('myChart'));
**【这里放你在官网复制的代码】**
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option, true);
}

6、在mounted挂载你刚刚定义好的方法

mounted() {
this.drawLine ();
}

7、下面看大家一个简单的例子看看效果吧

<div id="main2" v-if="mainFlag" style="width: 600px;height:400px;"></div>

hhh() {
let myChart = this.$echarts.init(document.getElementById('main2'));
var option = {
title: {
text: '动态数据',
subtext: '纯属虚构'
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'cross',
label: {
backgroundColor: '#283b56'
}
}
},
legend: {
data: ['最新成交价', '预购队列']
},
toolbox: {
show: true,
feature: {
dataView: {
readOnly: false
},
restore: {},
saveAsImage: {}
}
},
dataZoom: {
show: false,
start: 0,
end: 100
},
xAxis: [{
type: 'category',
boundaryGap: true,
data: (function() {
var now = new Date();
var res = [];
var len = 10;
while (len--) {
res.unshift(now.toLocaleTimeString().replace(/^\D*/, ''));
now = new Date(now - 2000);
}
return res;
})()
},
{
type: 'category',
boundaryGap: true,
data: (function() {
var res = [];
var len = 10;
while (len--) {
res.push(10 - len - 1);
}
return res;
})()
}
],
yAxis: [{
type: 'value',
scale: true,
name: '价格',
max: 30,
min: 0,
boundaryGap: [0.2, 0.2]
},
{
type: 'value',
scale: true,
name: '预购量',
max: 1200,
min: 0,
boundaryGap: [0.2, 0.2]
}
],
series: [{
name: '预购队列',
type: 'bar',
xAxisIndex: 1,
yAxisIndex: 1,
data: (function() {
var res = [];
var len = 10;
while (len--) {
res.push(Math.round(Math.random() * 1000));
}
return res;
})()
},
{
name: '最新成交价',
type: 'line',
data: (function() {
var res = [];
var len = 0;
while (len < 10) {
res.push((Math.random() * 10 + 5).toFixed(1) - 0);
len++;
}
return res;
})()
}
]
};

app.count = 11;
setInterval(function() {
var axisData = (new Date()).toLocaleTimeString().replace(/^\D*/, '');

var data0 = option.series[0].data;
var data1 = option.series[1].data;
data0.shift();
data0.push(Math.round(Math.random() * 1000));
data1.shift();
data1.push((Math.random() * 10 + 5).toFixed(1) - 0);

option.xAxis[0].data.shift();
option.xAxis[0].data.push(axisData);
option.xAxis[1].data.shift();
option.xAxis[1].data.push(app.count++);

myChart.setOption(option);
}, 2100);
myChart.setOption(option, true);
}

mounted() {
this.hhh();
}

8、效果展示

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