在vue中如何配置less（附代码）

npm install --save-dev less less-loader

npm install --save-dev style-loader css-loader

<script>
    (function (doc, win) {
      var docEl = doc.documentElement,
        resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
        recalc = function () {
          var clientWidth = docEl.clientWidth;
          if (!clientWidth) return;
          if (clientWidth >= 640) {
            docEl.style.fontSize = '100px';
          } else {
            docEl.style.fontSize = 100 * (clientWidth / 640) + 'px';
          }
        };

      if (!doc.addEventListener) return;
      win.addEventListener(resizeEvt, recalc, false);
      doc.addEventListener('DOMContentLoaded', recalc, false);
    })(document, window);
  </script>

{
        test: /\.less$/,
        use: [
          "style-loader",
          "css-loader",
          "less-loader"
        ]
      }

<template>
    <div> <p>header</p> </div>
</template>

<script>
export default {
  name: "headers",
  data() {
    return {};
  }
};
</script>

<style scoped>
.box {
  height: 300/50rem;
  width: 200/50rem;
  background-color: red;
  font-size: 16/50 rem;
}
</style>