vue 数据看板大屏适配方案

1.在public文件夹中新建一个flexs.js文件

//flexs.js
(function(win) {
  var bodyStyle = document.createElement('style');
 // 这里根据具体的设计稿尺寸来定
  bodyStyle.innerHTML = `body{width:1920px; height:1080px!important;}`;
  document.documentElement.firstElementChild.appendChild(bodyStyle);

  function refreshScale() {
    let docWidth = document.documentElement.clientWidth;
    let docHeight = document.documentElement.clientHeight;
    var designWidth = 1920,  // 这里根据具体的设计稿尺寸来定
      designHeight = 1080,  // 这里根据具体的设计稿尺寸来定
      widthRatio = docWidth / designWidth,
      heightRatio = docHeight / designHeight;
    document.body.style = `transform:scale(${widthRatio});transform-origin:left top;overflow: hidden;`;
    // 应对浏览器全屏切换前后窗口因短暂滚动条问题出现未占满情况
    setTimeout(function() {
      var lateWidth = document.documentElement.clientWidth,
        lateHeight = document.documentElement.clientHeight;
      if (lateWidth === docWidth) return;

      widthRatio = lateWidth / designWidth;
      heightRatio = lateHeight / designHeight;
      document.body.style = 'transform:scale(' + widthRatio  + ');transform-origin:left top;overflow: hidden;';
    }, 0);
  }
  refreshScale();

  win.addEventListener(
    'pageshow',
    function(e) {
      if (e.persisted) {
        // 浏览器后退的时候重新计算
        refreshScale();
      }
    },
    false
  );
  win.addEventListener('resize', refreshScale, false);
})(window);

2.在index.html文件中引入文件