请帮助我使用循环完成getElementById()中的Id增量。GetElementsById中自动增加ID
<script type="text/javascript">
document.getElementById('idA(increment)').onchange = function() {
document.getElementById('idB(increment)').value = event.target.value
}
</script>
代替
<script type="text/javascript">
document.getElementById(\'idA1\').onchange = function() {
document.getElementById(\'idB1\').value = event.target.value
}
document.getElementById(\'idA2\').onchange = function() {
document.getElementById(\'idB2\').value = event.target.value
}
document.getElementById(\'idA3\').onchange = function() {
document.getElementById(\'idB3\').value = event.target.value
}
</script>
如果您想定位多个元素为什么不直接使用的类名附加功能? – NewToJS