django中使用AJAX时如何获取表单参数（按钮携带参数）

<form  id="SmsForm" method="post" class="a">
            {% csrf_token %}
            <div class="">
                <input class="" name="name" id="name" type="text" placeholder="请输入用户名">
            </div>
            <div class="form-group">
                <input type="text" onfocus="(this.type=‘time‘)" id="pick_time" name="time" placeholder="请输入时间" >
            </div>
            <div class="form-group">
                <input class="" name="addr1" id="addr1" type="text" placeholder="请输入地址1">
            </div>
            <div class="form-group">
                <input class="" name="addr2" id="addr2" type="text" placeholder="请输入地址2">
            </div>
            <div class="form-group">
                <input class="form-control" name="tel" id="tel" type="text" placeholder="请输入电话">
            </div>
            <input class="b" type="button" value="预览短信" onclick="send_sms(‘check‘)"/>

            <input class="b" type="button" value="发送短信" onclick="send_sms(‘send‘)"/>

        </form>

    <script src="/static/js/jquery.min.js"></script>
<script>
    $(‘#pick_time‘).blur(function(){
    var obj = $(this);
    if(!obj.val()){
        obj.prop(‘type‘,‘text‘);
    }
});

function  send_sms(work_operation) {
    var data={};
        data[‘status‘] = work_operation;
    var params = $(‘#SmsForm‘).serializeArray();
    for (x in params){
        data[params[x].name] = params[x].value;
    }
    $.ajax({
        type:"POST",
        url: "{% url ‘managing:get_sms_message‘ %}",
        data: data,
        dataType: "json",
        success: function (response) {
            document.getElementById("get_sms_message").textContent = response.message;
        },
        error: function (rs, e) {
            alert(rs.responseText);
        }
    });
}
</script>