禁用滚轮 开启滚轮

function disabledMouseWheel() {

if (document.addEventListener) {

document.addEventListener('DOMMouseScroll',scrollFunc,false);

}//W3C

    window.onmousewheel =document.onmousewheel =scrollFunc;//IE/Opera/Chrome

    console.log(12345)

}

function scrollFunc(evt) {

evt = evt ||window.event;

if(evt.preventDefault) {

// Firefox

        console.log(12)

evt.preventDefault();

evt.stopPropagation();

}else {

// IE

        evt.cancelBubble=true;

evt.returnValue =false;

}

console.log(121312)

return false;

}

//禁用滚轮

disabledMouseWheel()

//开启滚轮

 window.onmousewheel =document.onmousewheel =true;