js控制input禁止输入

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

<input type="text" id="myInput">
<script>
document.getElementById('myInput').addEventListener('keydown', function(event) {
    event.preventDefault();
});
</script>

<input type="text" id="myInput">
<button onclick="toggleInput()">Toggle Input</button>
<script>
function toggleInput() {
    var input = document.getElementById('myInput');
    if (input.disabled) {
        input.disabled = false;
    } else {
        input.disabled = true;
    }
}
</script>

document.getElementById('myInput').addEventListener('paste', function(event) {
    event.preventDefault();
});