VUE学习(十五)echarts的使用

 1.在项目中安装echarts

npm install echarts --save

 下面是vue的完整代码

<template>
	<div class="container">

		<h1>Echarts图表</h1>
  <div id="myChart" style="width:1500px;height:500px;margin:auto;"></div> 
 
	</div>
</template>

<script setup lang="ts">
import * as echarts from 'echarts'
import {onMounted} from "vue";
 

onMounted(() => { // 需要在页面加载完毕后展示图表，这里使用Vue3的组合式生命周期钩子 onMounted()
      let myChart = echarts.init(document.getElementById("myChart"));
// 设置图表配置项,可以直接从Echarts的示例中，将配置项复制下来后放入下列的myChart.setOption()中实现图表的样式更换
      myChart.setOption({
        title: {
          text: 'Stacked Area Chart'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#6a7985'
            }
          }
        },
        legend: {
          data: ['Email', 'Union Ads', 'Video Ads', 'Direct', 'Search Engine']
        },
        toolbox: {
          feature: {
            saveAsImage: {}
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            type: 'category',
            boundaryGap: false,
            data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ],
        series: [
          {
            name: 'Email',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [120, 132, 101, 134, 90, 230, 210]
          },
          {
            name: 'Union Ads',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [220, 182, 191, 234, 290, 330, 310]
          },
          {
            name: 'Video Ads',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [150, 232, 201, 154, 190, 330, 410]
          },
          {
            name: 'Direct',
            type: 'line',
            stack: 'Total',
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [320, 332, 301, 334, 390, 330, 320]
          },
          {
            name: 'Search Engine',
            type: 'line',
            stack: 'Total',
            label: {
              show: true,
              position: 'top'
            },
            areaStyle: {},
            emphasis: {
              focus: 'series'
            },
            data: [820, 932, 901, 934, 1290, 1330, 1320]
          }
        ]
            });
            window.onresize = function () { // 自适应大小
              myChart.resize();
            };
      }); 
</script>

<style scoped>
.content-title {
	font-weight: 400;
	line-height: 50px;
	margin: 10px 0;
	font-size: 22px;
	color: #1f2f3d;
}

.pre-img {
	width: 100px;
	height: 100px;
	background: #f8f8f8;
	border: 1px solid #eee;
	border-radius: 5px;
}
.crop-demo {
	display: flex;
	align-items: flex-end;
}
.crop-demo-btn {
	position: relative;
	width: 100px;
	height: 40px;
	line-height: 40px;
	padding: 0 20px;
	margin-left: 30px;
	background-color: #409eff;
	color: #fff;
	font-size: 14px;
	border-radius: 4px;
	box-sizing: border-box;
}
.crop-input {
	position: absolute;
	width: 100px;
	height: 40px;
	left: 0;
	top: 0;
	opacity: 0;
	cursor: pointer;
}
</style>