在React项目中轻松上手Echarts基础应用

1.下载第三方包：

npm i echarts --save 

2.组件中引入echarts:

import * as echarts from "echarts"

3.定时器+自动刷新:

const myDom = useRef()
    
 useEffect(()=>{
    eFn()
},[])
function eFn(){
    let myecharts = echarts.init(myDom.current)
    myecharts.clear()
    myecharts = echarts.init(myDom.current)
    let option;
    //配置option
    
    option && myecharts.setOption(option)

}
clearInterval(timer)
timer = setInterval(() => {
    eFn()
}, 5000);

4.页面自适应：

.home{ //父级盒子
    width: 100%;
    height: 100%;
    // 自适应
    display: flex;
    justify-content: space-around;
    flex-flow: row wrap; //以行排列 并允许换行
    align-content: flex-start ;
}
.main{//子级盒子
    width: 30%;
    height: 40%;
    margin: 20px;
    border: 1px solid #eee;
    box-sizing: border-box ;
}

5.另一种自适应:

* {
    margin: 0;
    padding: 0;
}

html,
body,
#root {
    width: 100% !important;
    height: 100% !important;
}

#echars {
    width: 100% !important;
    height: 100%;
    background-color: rgb(24, 30, 115);

    .kuang {
        height: 500px;
        width: 400px;
        // background-color: #fff;
        position: absolute;
        z-index: 10;
        bottom: 0;
        transform: translateX(-390px)
    }
    .kuang:hover {
       animation: myanimation 1s linear 1;
       animation-fill-mode:forwards;
       background-color: #fff;
    }
    @keyframes myanimation {
        0%{
            transform: translateX(-400px);
        }
        100%{
            transform:translateX(0);
        }
    }
    .bigbox {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-evenly;
        margin: 0 auto;
        // height: 500px;
        div {
            width: 33%;
            height: 50%;
            .echarts-for-react {
                width: 100%;
                height: 100% !important;
            }
        }
    }
}