如何在HTML中禁用Ctrl+滚轮的页面放大和缩小功能？

document.addEventListener('mousewheel', function(e) {
  e = e || window.event;
  if ((e.wheelDelta && e.ctrlKey) || e.detail) {
    e.preventDefault();
  }
}, { capture: false, passive: false });

document.addEventListener('keydown', function(event) {
  if ((event.ctrlKey || event.metaKey) &&
      (event.keyCode === 61 || event.keyCode === 107 ||
       event.keyCode === 173 || event.keyCode === 109 ||
       event.keyCode === 187 || event.keyCode === 189)) {
    event.preventDefault();
  }
}, false);

methods: {
  keepRatio() {
    let ratio = 0;
    const screen = window.screen;
    const ua = navigator.userAgent.toLowerCase();
    if (window.devicePixelRatio !== undefined) {
      ratio = window.devicePixelRatio;
    } else if (ua.indexOf('msie') > -1) {
      if (screen.deviceXDPI && screen.logicalXDPI) {
        ratio = screen.deviceXDPI / screen.logicalXDPI;
      }
    } else if (window.outerWidth && window.innerWidth) {
      ratio = window.outerWidth / window.innerWidth;
    }
    if (ratio) { ratio = Math.round(ratio * 100); }
    this.ratio = (ratio / 100).toFixed(2);
    document.body.style.zoom = 1 / this.ratio;
  }
},
mounted() {
  this.keepRatio();
  window.addEventListener('resize', this.keepRatio);
}