<div class="container">
  <div id="zoom-div">
    a div
  </div>
</div>

.container div {
  background: burlywood;
  display: inline-block;
  width: 100px;
  height: 200px;
  border: 1px solid aquamarine;
  transform-origin: top left;
  transition: all 300ms linear;
}

let zoom = 1.0;
let clickCount = 0;
let timer = null;
const dbclick = () => {
  if (zoom > 2.5) {
    return;
  }
  zoom = zoom + 0.1;
  document.getElementById("zoom-div").style["transform"] = `scale(${zoom})`;
};

const triclick = () => {
  if (zoom <= 0.5) {
    return;
  }
  zoom = zoom - 0.1;
  document.getElementById("zoom-div").style["transform"] = `scale(${zoom})`;
};

document.getElementById("zoom-div").addEventListener("click", () => {
  clickCount = clickCount + 1;
  if (timer === null) {
    timer = setTimeout(() => {
      if (clickCount === 2) {
        console.log("双击");
        dbclick();
      } else if (clickCount >= 3) {
        console.log("三连");
        triclick();
      }
      clickCount = 0;
      timer = null;
    }, 300);
  }
});