后台获取radio的值，给页面添加默认值 【js， query】

<label>登记类型：</label>
                            <div class="kk-complaint-radio kk-claerfix">
                                <div class="mui-radio mui-pull-left">
                                    <input name="radio1" value="1" type="radio" >
                                    <label>投诉</label>
                                </div>
                                <div class="mui-radio mui-pull-left">
                                    <input name="radio1" value="2" type="radio">
                                    <label>举报</label>
                                </div>

                            </div>

js赋值：

var ele1 = document.getElementsByName("radio1");
ele1[0].checked=true;

jquery赋值

$("input[type=‘radio1‘]").eq(0).prop("checked",true);//默认选中有

$("input[name=‘radio1‘][value=‘2‘]").attr("checked",true); 

获取当前用户选中的值

function getRadioRes(className) {
                var rdsObj = document.getElementsByName(className);
                var chackVal = null;
                for(i = 0; i < rdsObj.length; i++) {
                    if (rdsObj[i].checked) {
                        chackVal = rdsObj[i].value;
                    }
                }
                return chackVal;
            }

var regType = getRadioRes("radio1");

原文地址：https://www.cnblogs.com/xkoko/p/9663482.html