禁止浏览器放大至200以上(监听鼠标滚轮事件版)
document.addEventListener('mousewheel', function (e) {
e = e || window.event;
if ((e.wheelDelta && event.ctrlKey) || e.detail) {
if(window.devicePixelRatio == 2.0 && e.wheelDelta>0){
event.preventDefault();
}
}
}, { capture: false, passive: false});
完全禁止
document.addEventListener('keydown', function (event) {
debugger
if ((event.ctrlKey === true || event.metaKey === true)
&& (event.keyCode === 61 || event.keyCode === 107
|| event.keyCode === 173 || event.keyCode === 109
|| event.keyCode === 187 || event.keyCode === 189)) {
event.preventDefault();
}
}, false);