向一个元素添加多个事件侦听器

const element = document.getElementById('myElement');

element.addEventListener('click', function() {
  console.log('Element clicked');
});

element.addEventListener('mouseover', function() {
  console.log('Mouse over element');
});

const element = document.getElementById('myElement');

element.attachEvent('onclick', function() {
  console.log('Element clicked');
});

element.attachEvent('onmouseover', function() {
  console.log('Mouse over element');
});

const element = document.getElementById('myElement');

element.onclick = function() {
  console.log('Element clicked');
};

element.onmouseover = function() {
  console.log('Mouse over element');
};