你能为html onkeyup添加多个javascript函数吗？

<input type="text" onkeyup="function1(), function2(), function3()">

<input type="text" onkeyup="function(){
    function1();
    function2();
    function3();
}">

<input type="text" id="myInput">

<script>
    var input = document.getElementById("myInput");
    input.addEventListener("keyup", function1);
    input.addEventListener("keyup", function2);
    input.addEventListener("keyup", function3);
</script>