vue大屏可视化-屏幕自适应(1920)

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1.在配置文件设置大屏设计尺寸1920*1080

//config/base.js export default{ screen:{ width:1920, height:1080, scale:20 }//大屏设计宽高 } 2.在定义resetScreenSize.js

import appConfig from '../config/base'

export function pageResize(callback) { let init = () => { console.log(window.innerHeight + "," + window.innerWidth);
let _el = document.getElementById('app');

    let hScale = window.innerHeight / appConfig.screen.height;
    let wScale = window.innerWidth / appConfig.screen.width;
    let pageH = window.innerHeight;
    let pageW = window.innerWidth;
   
    let isWider = (window.innerWidth / window.innerHeight) >= (appConfig.screen.width / appConfig.screen.height);
    console.log(isWider);
    if (isWider) {
            _el.style.height = window.innerHeight+'px';// '100%';
            _el.style.width = pageH * appConfig.screen.width / appConfig.screen.height + 'px';
            _el.style.top='0px';
            _el.style.left=(window.innerWidth -pageH * appConfig.screen.width / appConfig.screen.height)*0.5+'px';
            console.log(_el.style.width + "," + _el.style.height)
    }
    else {
            _el.style.width = window.innerWidth+'px';// '100%';
            _el.style.height = pageW * appConfig.screen.height / appConfig.screen.width + 'px';
            _el.style.top= 0.5*(window.innerHeight-pageW * appConfig.screen.height / appConfig.screen.width)+'px';
            _el.style.left='0px';
            console.log(_el.style.height);
            console.log(_el.style.top);
    }
    document.documentElement.style.fontSize =  (_el.clientWidth / appConfig.screen.scale) + 'px';

  
}    
var resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize';
window.addEventListener(resizeEvt, init, false);
document.documentElement.addEventListener('DOMContentLoaded', init, false);
init()

} 3.使用方式 main.js import appConfig from './config/base.js'; Vue.prototype.appConfig=appConfig; app.vue在mounted函数引入 import {pageResize} from './utils/resetScreenSize'

export default { name: 'App', data(){ return{

}

}, mounted(){ pageResize(); console.log('pageResize'); } } 组件样式lang="stylus" .mc{ display :flex; flex-direction :column; align-content :center; justify-content :center;
display: flex; flex: 1 1 auto; flex-direction: column; padding:(15/96)rem; }

.leftC{
   width :(410/96)rem;
}

.centerC{
   width :(1060/96)rem;
}

.rightC{
   width :(450/96)rem;
}
其中 96为 配置文件中1920/20得来,这样不用在进行各种换算了