# 使用堆栈
通常使用基于Blade难于管理的情况是,当每个Blade包含层次结构的视图想要添加内容时-就像向数组添加一套内容一样.
最常见的情况是，某些页面（有时候，更广泛地说，网站的某些部分）需要加载的特定CSS和JavaScript文件。 想象一下，你的站点有一个全局的CSS文件,然后有一个包含作业CSS的文件,以及一个申请包含申请作业CSS的文件
Blade的堆栈就是用来解决这类问题的,在父类模板中定义个堆栈,它只是个占位符,然后，在每个子模板中，您可以使用@ push / @ endpush将条目“推送”到该堆栈，最终它们将会被渲染到堆栈尾.你也可以使用@prepend/@endprepend将条目放到堆栈首,如示例4-13
{% code title="Example 4-13. Using Blade stacks" %}
```php
@stack('scripts')
@extends('layouts.app')
@push('scripts')
@endpush
@extends('jobs')
@prepend('scripts')
@endprepend
```
{% endcode %}
最终生成如下内容:
```markup
```
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
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```
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