微信小程序使用echarts组件实现饼状统计图功能
使用echarts实现在微信小程序中统计图的功能,具体的实现步骤思路可进我主页查看我的另一篇博文https://blog.csdn.net/weixin_45465881/article/details/138171153进行查看,本篇文章主要使用echarts组件实现饼状统计图功能,用性别作此示例,具体的实现结果截图如下:
echarts组件代码较多,components文件夹的内容可在我主页的资源免费下载或者可前往echarts官网下载呦,引入的路径一定要正确。具体关于pages文件夹的代码如下:
1、wxml代码:
<view class="charts-box">
<view class="charts-title">
<view class="charts-pot"></view>
<view>{{title}}</view>
</view>
<view style="height: 500rpx;">
<ec-canvas canvas-id="mychart-bar" ec="{{sex}}"></ec-canvas>
</view>
</view>
2、wxss代码:
page {
background-color: #f1f1f1;
}
.charts-box {
background-color: white;
margin: 20rpx;
border-radius: 15rpx;
padding: 20rpx;
}
.charts-title {
display: flex;
flex-direction: row;
font-size: 24rpx;
align-items: center;
justify-content: flex-start;
color: rgb(173, 173, 173);
margin-top: 10rpx;
}
.charts-pot {
width: 46rpx;
height: 24rpx;
background-color: #fcadb0;
margin-right: 10rpx;
border-radius: 10rpx;
margin-top: 2rpx;
}
3、js代码:
import * as echarts from '../../components/ec-canvas/echarts.min';
let chart = null;
Page({
/**
* 页面的初始数据
*/
data: {
title: 'CSDN粉丝性别占比',
sex: {
onInit: initChart
}
},
})
function initChart(canvas, width, height, dpr) {
chart = echarts.init(canvas, null, {
width: width,
height: height,
devicePixelRatio: dpr // new
});
canvas.setChart(chart);
let attr = [
{'value':175,'name':'男性'},
{'value':120,'name':'女性'},
{'value':36,'name':'未知'}
]
let option = {
tooltip: {
trigger: 'item'
},
legend: {
top: '90%',
left: 'center'
},
color: ['#fcbd71', '#fcadb0', '#FF82AB'],
series: [{
name: '性别',
type: 'pie',
radius: ['52.87%', '36.25%','10.88%'],
avoidLabelOverlap: false,
itemStyle: {
borderRadius: 10,
borderColor: '#fff',
borderWidth: 2
},
label: {
show: false,
position: 'center'
},
emphasis: {
label: {
show: true,
fontSize: 16,
}
},
labelLine: {
show: false
},
data: attr
}]
};
chart.setOption(option);
return chart;
}
4、json代码:
{
"component": true,
"navigationBarTitleText": "echarts·饼状统计图",
"navigationBarBackgroundColor": "#008B8B",
"usingComponents": {
"ec-canvas":"../../components/ec-canvas/ec-canvas"
}
}
我这里简单绘制的饼状统计图,如需要其他的统计图,可自行学习或者进我主页,将分享更多内容呦~
小编创作不易,口干舌燥,可以的话,请我喝杯水吧!欢迎各位的批评指导呦~