## 按需对参数排序的技巧

如果你想不使用 `Query` 声明没有默认值的查询参数 `q`，同时使用 `Path` 声明路径参数 `item_id`，并使它们的顺序与上面不同，Python 对此有一些特殊的语法。

传递 `*` 作为函数的第一个参数。

Python 不会对该 `*` 做任何事情，但是它将知道之后的所有参数都应作为关键字参数（键值对），也被称为 <abbr title="来自：K-ey W-ord Arg-uments"><code>kwargs</code></abbr>，来调用。即使它们没有默认值。

```Python hl_lines="7"
{!../../../docs_src/path_params_numeric_validations/tutorial003.py!}
```

## 数值校验：大于等于

				if strings.HasPrefix(c.Text, "// Deprecated:") {
					return true
				}
			}
		}
		return false
	}

	w.deprecated = make(map[token.Pos]bool)
	mark := func(id *ast.Ident) {
		if id != nil {
			w.deprecated[id.Pos()] = true
		}
	}
	for _, file := range w.current.Files {
		ast.Inspect(file, func(n ast.Node) bool {
			switch n := n.(type) {
			case *ast.File:

```Python hl_lines="7"
{!../../../docs_src/path_params_numeric_validations/tutorial003.py!}
```

### Besser mit `Annotated`

pkg syscall (openbsd-amd64), type FdSet struct, Bits [32]int32
pkg syscall (openbsd-amd64), type Kevent_t struct, Data int32
pkg syscall (openbsd-amd64), type Kevent_t struct, Ident uint32
pkg syscall (openbsd-amd64), type Mclpool struct, Grown uint32
pkg syscall (openbsd-amd64), type RtMetrics struct, Expire uint32
pkg syscall (openbsd-amd64), type Stat_t struct, Ino uint32

pkg go/types, type Config struct, Context *Context
pkg go/types, type Config struct, GoVersion string
pkg go/types, type Context struct
pkg go/types, type Info struct, Instances map[*ast.Ident]Instance
pkg go/types, type Instance struct
pkg go/types, type Instance struct, Type Type
pkg go/types, type Instance struct, TypeArgs *TypeList
pkg go/types, type Term struct
pkg go/types, type TypeList struct

@app.put("/items/{item_id}")
def update_item(item_id: int, item: Item):
    return {"item_name": item.name, "item_id": item_id}
```

A szerver automatikusan újraindul (mert hozzáadtuk a --reload paramétert a fenti `uvicorn` parancshoz).

### Interaktív API dokumentáció frissítése

Most menj el a <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a> címre.

      The following declarations related to
      <a href='https://pkg.go.dev/go/ast#Object'>syntactic identifier resolution</a>
      are now <a href="https://go.dev/issue/52463">deprecated</a>:
      <code>Ident.Obj</code>,
      <code>Object</code>,
      <code>Scope</code>,
      <code>File.Scope</code>,
      <code>File.Unresolved</code>,
      <code>Importer</code>,
      <code>Package</code>,

pkg syscall (openbsd-amd64), type FdSet struct, Bits [32]uint32
pkg syscall (openbsd-amd64), type Kevent_t struct, Data int64
pkg syscall (openbsd-amd64), type Kevent_t struct, Ident uint64
pkg syscall (openbsd-amd64), type Mclpool struct, Grown int32
pkg syscall (openbsd-amd64), type RtMetrics struct, Expire int64
pkg syscall (openbsd-amd64), type RtMetrics struct, Pad uint32

pkg go/ast, method (*GoStmt) End() token.Pos
pkg go/ast, method (*GoStmt) Pos() token.Pos
pkg go/ast, method (*Ident) End() token.Pos
pkg go/ast, method (*Ident) IsExported() bool
pkg go/ast, method (*Ident) Pos() token.Pos
pkg go/ast, method (*Ident) String() string
pkg go/ast, method (*IfStmt) End() token.Pos
pkg go/ast, method (*IfStmt) Pos() token.Pos

pkg syscall (freebsd-386-cgo), type Kevent_t struct, Filter int16
pkg syscall (freebsd-386-cgo), type Kevent_t struct, Flags uint16
pkg syscall (freebsd-386-cgo), type Kevent_t struct, Ident uint32
pkg syscall (freebsd-386-cgo), type Kevent_t struct, Udata *uint8
pkg syscall (freebsd-386-cgo), type Msghdr struct
pkg syscall (freebsd-386-cgo), type Msghdr struct, Control *uint8