js javascript 根据后台的值默认选中单选按钮,radio,单选默认值,单选扭默认
<html> <head> <title>初始化单选</title> <script> function initradio(rName,rValue){ var rObj = document.getElementsByName(rName); for(var i = 0;i < rObj.length;i++){ if(rObj.value == rValue){ rObj.checked ='checked'; } } } </script> </head> <body> <form action="#"> 黑<input type="radio" name="tRadio" value="1"> 色<input type="radio" name="tRadio" value="2"> 头<input type="radio" name="tRadio" value="3"> 发<input type="radio" name="tRadio" value="4"> </form> <script> initradio('tRadio',3); </script> </body></html>黑色头发:http://heisetoufa.iteye.com
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