function abc(){ var sex=document.getElementsByName("userSex");//不能getElementById,ById又只会读数组第一个值 for(var i = 0; i < sex.length; i++) { if(sex[i].checked){ alert(sex[i].value); } } } </script> </HEAD> <BODY> <input id="userSex" name="userSex" type="radi...
<label><input type="radio" name="radio" value="4"/>网通</label> <input type="button" onclick="alert(getRadioValues());" value="取值方法一" /> <input type="button" onclick="foo();" value="取值方法二" /> </body> </html>...
// return the value of the radio button that is checked // return an empty string if none are checked, or // there are no radio buttons function getCheckedValue(radioObj) { if(!radioObj) return ""; var radioLength = radioObj.length; if(radioLength == undefined) if(radioObj.checked...
// return the value of the radio button that is checked// return an empty string if none are checked, or// there are no radio buttonsfunction getCheckedValue(radioObj) {if(!radioObj)return"";varradioLength = radioObj.length;if(radioLength == undefined)if(radioObj.checked)returnradioObj....
if(oRadio[i].value==3) { oRadio[i].checked=true; break; } } } functionfun3(){ //下拉框设置值 varoSelect=document.getElementById("select1"); oSelect.value=2; } functionsub(){ //复选框获取值 varoCheckbox=document.getElementsByName("checkbox1"); ...
"value="banana">香蕉</label><br><label><inputtype="radio"name="fruit"value="orange">橙子</label></form><buttonid="addRadioButton">添加新水果</button><script>document.getElementById('addRadioButton').onclick=function(){constnewRadio=document.createElement('input');newRadio.type='radio';...
<HTML><HEAD><TITLE> 可用鼠标拖动的层 </TITLE></HEAD><BODY><input name="q" type="radio" value="a" checked /><input name="q" type="radio" value="b" /><input name="q" type="radio" value="c" /><script>var $ = function(x){return document.getElementById(x)}var ...
要获取radio和select的属性并控制它们,可以使用以下JavaScript技巧:,,1. 获取radio的属性:通过document.querySelector或document.getElementById获取radio元素,然后使用checked属性判断是否选中。,,2. 获取select的属性:通过document.querySelector或document.getElementById获取select元素,然后使用value属性获取选中的值。,,3....
input name="radiobutton" type="radio" value="radiobutton" checked 只要 写 checked 就被选中了默认的 if
oRadio[i].checked = true; break; } } } function fun3(){ //下拉框设置值 var oSelect = document.getElementById("select1"); oSelect.value = 2; } function sub(){ //复选框获取值 var oCheckbox = document.getElementsByName("checkbox1"); var arr = []; var index = 0; for(var ...