Can you tell me how to append the line `@Html.Partial("_Layout")` to `<div class="demo">` by jQuery?

I have tried it, but it doesn't work:

```
<input type="button" id="btn" value="Click me" />
<div class="demo">
</div>

```

jQuery code:

```
$('#btn').click(function(){
     $('.demo').append('@@Html.Partial("_Layout")');
     $('.demo').html($('.demo').text());
});

```

But the result I received was:

```
<div class="demo">
     @Html.Partial("_Layout")
</div>

```

Browser understood that `@Html.Partial("_Layout")` is a plain text, not a Razor syntax.

Please tell me how to fix it? Many thanks!!!