<script>
    $(".askCheng").click(function(){
        var user_id = $("input[name='user_id']").val(),
                course_id = $("input[name='course_id']").val(),
                section_id = $("input[name='section_id']").val(),
                content = $(".bijicheng").val();


    <span class="hljs-keyword">if</span>(content==<span class="hljs-literal">null</span>||content==<span class="hljs-string">""</span>){
        alert(<span class="hljs-string">"内容不能为空"</span>);
        <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;
    }
    $.ajax(
            {
                type : <span class="hljs-string">"post"</span>,
                url : <span class="hljs-string">"{:U('course/Course/postbiji')}"</span>,
                data: {<!-- --><span class="hljs-string">'user_id'</span>:user_id,<span class="hljs-string">'course_id'</span>:course_id,<span class="hljs-string">'section_id'</span>:section_id,<span class="hljs-string">'content'</span>:content},
                dataType:<span class="hljs-string">"TEXT"</span>,
                success : <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-params">(json)</span>
                {<!-- --></span>

                    <span class="hljs-keyword">if</span> (json.status==<span class="hljs-number">1</span>) {
                        alert(json.data);
                    }
                },dataType:<span class="hljs-string">'json'</span>
            });
    <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;

})
</script>

//后台操作

public function postbiji(){
    $data['user_id'] = $_POST['user_id'];
    $data['course_id'] = $_POST['course_id'];
    $data['section_id'] = $_POST['section_id'];
    $data['content'] = $_POST['content'];
    $data['created_at'] = time();


<span class="hljs-keyword">if</span>(<span class="hljs-variable">$this</span>-&gt;sectionBiji-&gt;add(<span class="hljs-variable">$data</span>)){
    <span class="hljs-variable">$this</span>-&gt;ajaxReturn(<span class="hljs-keyword">array</span>(
        <span class="hljs-string">'data'</span>=&gt;<span class="hljs-string">'记录成功'</span>,
        <span class="hljs-string">'info'</span>=&gt;<span class="hljs-string">'success'</span>,
        <span class="hljs-string">'status'</span>=&gt;<span class="hljs-number">1</span>
    ));
}
}