首先下载echarts.min.js

下载完成放在static/js下 ，我的目录是这样的

然后在components写一个echart组件

echart.vue

<template>
	<view class="content">
		<view @click="echarts.onClick" :prop="option" :defaultClickNumber="defaultClickNumber"
			:change:defaultClickNumber="echarts.defaultClickNumberMsg" :change:prop="echarts.updateEcharts"
			:id="option.id" class="echarts">
		</view>
	</view>
</template>

<script>
	export default {
		name: "echarts",
		props: {
			option: {
				type: Object,
				require: true,
				default: {
					id: null
				}
			},
			defaultClickNumber: {
				type: Number,
				require: false,
				default: 0
			}
		},
		methods: {
			onViewClick(options) {
				this.$emit("click", options)
			}
		}
	}
</script>

<script module="echarts" lang="renderjs">
//如果app上不管用 就把下边这个松开
	// import * as echarts from 'echarts';
	export default {
		name: "echarts",
		data() {
			return{
				myChart: null,
				// defaultClickNumber: 0,
				clickData: {}
			}
			
		},
		mounted() {
			console.log(window.echarts) 
			if (typeof window.echarts === 'function') {
				this.initEcharts()
			} else {
				const that = this;
				const script = document.createElement('script')
				script.src = '../../static/js/echarts.js'
				script.onload=this.initEcharts() //这行在app端好用
				//下面的代码在h5端是好用的，但是app端不走，如果引入js不好使，你再去官网下载其他的js
				script.onload = function(t) {
					const scriptLi = document.createElement("script");
					scriptLi.src = '../../static/js/echarts.js'
					scriptLi.onload = that.initEcharts.bind(that)
					document.head.appendChild(scriptLi)
				}
				document.head.appendChild(script)
			}
		},
		methods: {
			initEcharts() {
				const that = this;
				try{ 
					let echartsDoc = document.getElementById(that.option.id);
					// console.log("echarts",echarts)
					that.myChart = echarts.init(echartsDoc)
					if (that.myChart) {
						that.myChart.setOption(that.option)
						if (that.defaultClickNumber != 0) {
							that.defaultClick(that.defaultClickNumber);
						}
						that.myChart.on('click', param => {
							that.clickData = param;
						})
					}
				}catch(e){
					//TODO handle the exception
				} 
		},
		//虽然没什么效果 但是一块抄上就完事了
		defaultClickNumberMsg(newValue, oldValue, ownerInstance, instance) {
			// 监听 service 层defaultClickNumber数据变更 必须在view上绑定defaultClickNumber 然后在通过change事件监听执行此方法
			this.defaultClickNumber = newValue;
		},
		updateEcharts(newValue, oldValue, ownerInstance, instance) {
			// 监听 service 层数据变更
			try{
				this.myChart.setOption(newValue)
			}catch(e){
			}
		},
		onClick(event, ownerInstance) {
			// 调用 service 层的方法 
			ownerInstance.callMethod('onViewClick', {})
		},
		defaultClick(defaultClickNumber) { //默认选中第几个数据
			if (this.myChart) {
				this.myChart.dispatchAction({
					type: 'highlight',
					seriesIndex: 0,
					dataIndex: defaultClickNumber
				});
				// 当鼠标移入时，如果不是第一项，则把当前项置为选中，如果是第一项，则设置第一项为当前项
				this.myChart.on('mouseover', function(e) {
					this.myChart.dispatchAction({
						type: 'highlight',
						seriesIndex: 0,
						dataIndex: e.dataIndex
					});

				});

				//当鼠标离开时，把当前项置为选中 
				this.myChart.on('mouseout', function(e) {
					index = e.dataIndex;
					this.myChart.dispatchAction({
						type: 'highlight',
						seriesIndex: 0,
						dataIndex: e.dataIndex
					});
				});
			}
		}
	}
	}
</script>

<style>
	.content {
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
	}

	.echarts {
		width: 100%;
		height: 100%;
	}
</style>

点击好像不管用啊，根据自己的情况酌情删除

然后在父组件中调用echart.vue

下边是父组件的代码

<echart class="echarts" :style="{width:'100%',height:'250px'}" :option="Options"></echart>

import echart from "../../components/echart.vue";
export default {
		components: {
			'echart': echart
		},
		data() {
			return {
			//写配置项，我用的是柱状图，可以根据自己的需求改
				Options: {
					id: 'option1',
					xAxis: {
						type: 'category',
						axisLabel: {
							interval: 0,
							rotate: 40
						},
						data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
					},
					yAxis: {
						type: 'value'
					},
					series: [{
						data: [120, 200, 150, 80, 70, 110, 130],
						type: 'bar',
						showBackground: true,
						backgroundStyle: {
							color: 'rgba(180, 180, 180, 0.2)'
						}
					}]
				}
			}
		},
		onLoad(){
			this.getlist()
		},
		methods:{
			//根据请求修改数据
			getlist(){
				var that = this
				uni.request({
				 	url:'你的地址',
				 	method：'post',
				 	data:'你的数据',
				 	header:{'你的请求头'},
				 	success(res){
				 		console.log(res)
				 		//根据你的数据格式调整 Options里边的数据
				 		that.Options.xAxis.data = '你的x轴数据'
						that.Options.series[0].data = '你的y轴数据'
						console.log(that.Options)
				 	}
				 	
				})
			}
		}
		

完成！