{String: "ceb8853ddc5086cc4ab9e149f8f09c88-1", ETag: ETag{206, 184, 133, 61, 220, 80, 134, 204, 74, 185, 225, 73, 248, 240, 156, 136, 45, 49}},   // 3
	{String: `"ceb8853ddc5086cc4ab9e149f8f09c88-2"`, ETag: ETag{206, 184, 133, 61, 220, 80, 134, 204, 74, 185, 225, 73, 248, 240, 156, 136, 45, 50}}, // 4
	{ // 5
		String: "90402c78d2dccddee1e9e86222ce2c6361675f3529d26000ae2e900ff216b3cb59e130e092d8a2981e776f4d0bd60941",

func (h *headerV7) uid() []byte      { return h[108:][:8] }
func (h *headerV7) gid() []byte      { return h[116:][:8] }
func (h *headerV7) size() []byte     { return h[124:][:12] }
func (h *headerV7) modTime() []byte  { return h[136:][:12] }
func (h *headerV7) chksum() []byte   { return h[148:][:8] }
func (h *headerV7) typeFlag() []byte { return h[156:][:1] }
func (h *headerV7) linkName() []byte { return h[157:][:100] }

type headerGNU [blockSize]byte

	_ = x[ErrInvalidEncryptionKeyID-132]
	_ = x[ErrInsecureSSECustomerRequest-133]
	_ = x[ErrSSEMultipartEncrypted-134]
	_ = x[ErrSSEEncryptedObject-135]
	_ = x[ErrInvalidEncryptionParameters-136]
	_ = x[ErrInvalidEncryptionParametersSSEC-137]
	_ = x[ErrInvalidSSECustomerAlgorithm-138]
	_ = x[ErrInvalidSSECustomerKey-139]
	_ = x[ErrMissingSSECustomerKey-140]
	_ = x[ErrMissingSSECustomerKeyMD5-141]

pkg debug/elf, const EM_CYPRESS_M8C Machine
pkg debug/elf, const EM_D10V = 85
pkg debug/elf, const EM_D10V Machine
pkg debug/elf, const EM_D30V = 86
pkg debug/elf, const EM_D30V Machine
pkg debug/elf, const EM_DSP24 = 136
pkg debug/elf, const EM_DSP24 Machine
pkg debug/elf, const EM_DSPIC30F = 118
pkg debug/elf, const EM_DSPIC30F Machine
pkg debug/elf, const EM_DXP = 112
pkg debug/elf, const EM_DXP Machine
pkg debug/elf, const EM_ECOG1 = 168

Create utility functions to:

* Read a single user by ID and by email.
* Read multiple users.
* Read multiple items.

```Python hl_lines="1  3  6-7  10-11  14-15  27-28"
{!../../../docs_src/sql_databases/sql_app/crud.py!}
```

!!! tip

导入之前的`models`（SQLAlchemy 模型）和`schemas`（Pydantic*模型*/模式）。

创建一些实用函数来完成：

* 通过 ID 和电子邮件查询单个用户。
* 查询多个用户。
* 查询多个项目。

```Python hl_lines="1  3  6-7  10-11  14-15  27-28"
{!../../../docs_src/sql_databases/sql_app/crud.py!}
```

!!! tip
    通过创建仅专用于与数据库交互（获取用户或项目）的函数，独立于*路径操作函数*，您可以更轻松地在多个部分中重用它们，并为它们添加单元测试。

### 创建数据

现在创建实用程序函数来创建数据。

	MOVB (R29)(R30), R14                       // ae6bbe38
	//TODO MOVHW.P 218(R22), R25               // d9a6cd78
	MOVH.P 179(R23), R5                        // e5368b78
	//TODO MOVHW.W 136(R2), R27                // 5b8cc878
	MOVH.W -63(R25), R22                       // 361f9c78
	//TODO MOVHW 5708(R25), R21                // 359bec79
	MOVH 54(R2), R13                           // 4d6c8079

🗄 `models` (🇸🇲 🏷) & `schemas` (Pydantic *🏷* / 🔗).

✍ 🚙 🔢:

* ✍ 👁 👩‍💻 🆔 & 📧.
* ✍ 💗 👩‍💻.
* ✍ 💗 🏬.

```Python hl_lines="1  3  6-7  10-11  14-15  27-28"
{!../../../docs_src/sql_databases/sql_app/crud.py!}
```

!!! tip