<html><body><h1>Element 对象</h1><h2>click() 方法</h2><p>将鼠标悬停在复选框上可模拟鼠标单击。</p><form> <input type="checkbox" id="myCheck" onmouseover="myFunction()"></form><script>function myFunction() { document.getElementById("myCheck").click();}</script></body></html>