js操作单选按钮
来源：互联网 发布：黑马程序员java教程 编辑：程序博客网 时间：2024/06/05 09:16
<html><head><script language="javascript">var checkValue = "";var radios = document.getElementsByName("test");function nowChecked(){for(var i=0;i<radios.length;i++){if(radios[i].checked){checkValue = radios[i].value;}}}function change(n){//alert("checkValue:"+checkValue+" n:"+n);if(checkValue != n){if(confirm("确认修改？")){radios[n].checked =true;nowChecked();}else{radios[checkValue].checked = true;}}}</script></head><body onload="nowChecked()"><input type="radio" name="test" value="0" checked="checked" onclick="change(0)"/>是<input type="radio" name="test" value="1" onclick="change(1)"/>否</body></html>
