HTML 输入框input事件监听实例
来源：互联网 发布：游戏源码怎么变成游戏 编辑：程序博客网 时间：2024/05/16 17:20
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><meta name="auther" content="fq" /><title>监听输入框值的即时变化 onpropertychange oninput</title><script type="text/javascript">function immediately(){var element = document.getElementById("mytext");if("\v"=="v") {element.onpropertychange = webChange;}else{element.addEventListener("input",webChange,false);}function webChange(){if(element.value){document.getElementById("test").innerHTML = element.value};}}</script></head><body>直接写在页面中的示例：<input type="text" name="textfield" oninput="document.getElementById('webtest').innerHTML=this.value;" onpropertychange="document.getElementById('webtest').innerHTML=this.value;" /><div>您输入的值为：<span id="webtest">还未输入</span></div><br /><br /><br /><br /><br />写在JS中的示例：<input type="text" name="textfield" id="mytext" /><div>您输入的值为：<span id="test">还未输入</span></div><script type="text/javascript">immediately();</script></body></html>
