layui button onclick失效

layui button onclick失效

<button type="button" class="layui-btn layui-btn-normal" onclick="test();">关闭</button>

layui.use(['form'], function () {
        var form = layui.form
            , $ = layui.jquery
            , layer = layui.layer;
        window.test=function () {
            layer.msg("1111");
        }
    });