HTML 文件必须引入这两个 js 文件
<script type="text/javascript" src="./js/jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="./js/layui/layui.js"></script>
----------------------完整代码(示例)--------------------------------
<!DOCTYPE html>
<html>
<head>
<title>测试</title>
<script type="text/javascript" src="./js/jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="./js/layui/layui.js"></script>
</head>
<body>
</body>
<script>
$('#btn').click(function(){
layui.use(['layer', 'form'], function(){
var layer = layui.layer,
form = layui.form;
layer.msg('没有搜索到相关成品！');
});
)}
</script>
</html>
layui.use(['layer', 'form'], function(){
var layer = layui.layer,
form = layui.form;
layer.msg('请录入半成品名称',{
icon: 1,
time: 2000,
end:function(){
location.href='www.baidu.com';
}
});
});