javascript——select 标签的使用

<%
        String state = (String) request.getAttribute("state");
        String day = (String) request.getAttribute("day");
    %>

<select name="state" id="state" class="form-control" style=" 120px; display: inline-block; margin-right: 20px;">
                        <option value="" <%if ("".equals(state)) {%> selected="selected"
                            <%}%>></option>
                        <option value="患者" <%if ("患者".equals(state)) {%> selected="selected"
                            <%}%>>患者</option>
                        <option value="医生" <%if ("医生".equals(state)) {%> selected="selected"
                            <%}%>>医生</option>
                    </select>

动态加载