Vue中使用echarts
Posted hahahakc
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echarts官网:https://echarts.apache.org/
安装: npm install echarts --save
DOM:
<div id="bar_chart" class="order_area"></div>
Script:
<script> import echarts from ‘echarts‘; export default { data() { return { id: ‘bar_chart‘, myChart: null }; }, mounted() { this.loadChart(); }, methods: { loadChart() { this.$nextTick(() => { this.myChart = echarts.init(document.getElementById(this.id)); this.myChart.setOption(this.initOption()); }); }, initOption() { const option = { backgroundColor: ‘#fff‘, tooltip: { trigger: ‘axis‘ }, legend: { data: [‘访问量‘, ‘下载量‘] }, xAxis: [ { type: ‘category‘, data: [ ‘1月‘, ‘2月‘, ‘3月‘, ‘4月‘, ‘5月‘, ‘6月‘, ‘7月‘, ‘8月‘, ‘9月‘, ‘10月‘, ‘11月‘, ‘12月‘ ] } ], yAxis: [ { type: ‘value‘ } ], series: [ { name: ‘访问量‘, type: ‘bar‘, color: [‘#516b91‘], 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 ], markPoint: { data: [ { type: ‘max‘, name: ‘最大值‘ }, { type: ‘min‘, name: ‘最小值‘ } ] } }, { name: ‘下载量‘, type: ‘bar‘, color: [‘#59c4e6‘], 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 ], markPoint: { data: [ { name: ‘年最高‘, value: 182.2, xAxis: 7, yAxis: 183 }, { name: ‘年最低‘, value: 2.3, xAxis: 11, yAxis: 3 } ] } } ] }; return option; } }, beforeDestroy() { if (!this.myChart) { return false; } this.myChart.dispose(); this.myChart = null; } }; </script>
组件销毁之前:销毁echarts组件,并将myChart重新赋值为Null
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