<form method="post"> roomName : <input type="text" name="roomName" value="<%=room.roomName%>"/><br/> roomContent:<textarea name="roomContent"><%=room.roomContent%></textarea><br/> roomCreateUser:<input type="text" value="<%=room.roomCreateUser%>" name="roomCreateUser"/><br/> roomChat:<input type="radio" name="roomChat" value="public" checked>公聊<input type="radio" name="roomChat" value="secret" >私聊<br/> <input type="hidden" name="id" value="<%=room._id%>"/> <input type="submit" value="submit"/> <input type="reset" value="reset"/></form><script> function chatradio(cName,cValue){ var cObj = document.getElementsByName(cName); for(var i = 0;i < cObj.length;i++){ if(cObj[i].value == cValue){ cObj[i].checked = 'checked'; } } }; chatradio('roomchat','<%=room.roomChat%>');</script>我想将后台已经有的roomChat值给html页面上对应的值checked一下,再显示到html页面的对应选项上,在网上找到了上述的方法自己改了一下变成了上面的代码,但是哪里还出了问题,导致仍然不能正确checked后台的值?
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