问题：
layui.use(['layer', 'form', 'element'], function(){
var layer = layui.layer
,form = layui.form
,element = layui.element
function test(){
//JS代码
}
});
调用test()时提示未定义
解决办法：
layui.use(['layer', 'form', 'element'], function(){
var layer = layui.layer
,form = layui.form
,element = layui.element
window.test = function(){
//JS代码
}
});