func test(name string, i I) {
	m := i.M()
	if m != 12345 {
		println(name, m)
		bad = true
	}
}

func ptrs() {
	var bigptr BigPtr = BigPtr{ 10000, 2000, 300, 45 }
	var smallptr SmallPtr = SmallPtr{ 12345 }
	var intptr IntPtr = 12345

//	test("bigptr", bigptr)
	test("&bigptr", &bigptr)
//	test("smallptr", smallptr)
	test("&smallptr", &smallptr)
//	test("intptr", intptr)
	test("&intptr", &intptr)
}

* Und die Datei `app/internal/admin.py` ist ein weiteres Submodul: `app.internal.admin`.

<img src="/img/tutorial/bigger-applications/package.svg">

Die gleiche Dateistruktur mit Kommentaren:

```
.
├── app                  # „app“ ist ein Python-Package
│   ├── __init__.py      # diese Datei macht „app“ zu einem „Python-Package“

# Bigger Applications - Multiple Files

If you are building an application or a web API, it's rarely the case that you can put everything on a single file.

**FastAPI** provides a convenience tool to structure your application while keeping all the flexibility.

!!! info
    If you come from Flask, this would be the equivalent of Flask's Blueprints.

## An example file structure

Let's say you have a file structure like this:

```
.
├── app

* 📤 📁 `app/internal/` ⏮️ ➕1️⃣ 📁 `__init__.py`, ⚫️ ➕1️⃣ "🐍 📦": `app.internal`.
*  & 📁 `app/internal/admin.py` ➕1️⃣ 🔁: `app.internal.admin`.

<img src="/img/tutorial/bigger-applications/package.svg">

🎏 📁 📊 ⏮️ 🏤:

```
.
├── app                  # "app" is a Python package
│   ├── __init__.py      # this file makes "app" a "Python package"

* 还有一个子目录 `app/internal/` 包含另一个 `__init__.py` 文件，因此它是又一个「Python 子包」：`app.internal`。
* `app/internal/admin.py` 是另一个子模块：`app.internal.admin`。

<img src="https://fastapi.tiangolo.com/img/tutorial/bigger-applications/package.svg">

带有注释的同一文件结构：

```
.
├── app                  # 「app」是一个 Python 包
│   ├── __init__.py      # 这个文件使「app」成为一个 Python 包
│   ├── main.py          # 「main」模块，例如 import app.main

Ian Lance Taylor <******@****.***> 1681508172 -0700

Dmitri Shuralyov <******@****.***> 1697569678 -0400

Clément Chigot <******@****.***> 1544435619 +0100

Clément Chigot <******@****.***> 1544435619 +0100

	sinkptr = q
	<-throttle
	sinkptr = p
}

var sinkptr *byte

func main() {
	const N = 1000
	for i := 0; i < N; i++ {
		throttle <- struct{}{}
		go noPointerArgs(nil, nil, badPtr, badPtr, badPtr, badPtr, badPtr, badPtr, badPtr)
		sink = make([]byte, 4096)
	}