html代码：

<div class="weui-cells weui-cells_radio" style="margin-top: 0;"><label class="weui-cell weui-check__label" for="x11"><div class="weui-cell__bd"><p>对私</p></div><div class="weui-cell__ft"><input type="radio" class="weui-check" name="radio1" id="x11" value="1"><span class="weui-icon-checked"></span></div></label><label class="weui-cell weui-check__label" for="x12"><div class="weui-cell__bd"><p>对公</p></div><div class="weui-cell__ft"><input type="radio" name="radio1" class="weui-check" id="x12" checked="checked" value="2"><span class="weui-icon-checked"></span></div></label></div>

js代码

$(document).ready(function(){console.log("merchat register")var flag = $("input[name='radio1']:checked").val();console.log("flag="+flag)
});

打印结果

flag=2