from fastapi import FastAPI, Path, Query

app = FastAPI()


@app.get("/items/{item_id}")
async def read_items(
    item_id: int = Path(title="The ID of the item to get"),
    q: str | None = Query(default=None, alias="item-query"),
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})

        go-version: ${{ matrix.go }}

    - name: Check out code into the Go module directory
      uses: actions/checkout@v4

    - name: go mod package cache
      uses: actions/cache@v4
      with:
        path: ~/go/pkg/mod
        key: ${{ runner.os }}-go-${{ matrix.go }}-${{ hashFiles('tests/go.mod') }}

    - name: Tests
      run: GITHUB_ACTION=true GORM_DIALECT=sqlite ./tests/tests_all.sh

  mysql:
    strategy:

package disk

import (
	"errors"
	"fmt"

	"golang.org/x/sys/unix"
)

// GetInfo returns total and free bytes available in a directory, e.g. `/`.
func GetInfo(path string, _ bool) (info Info, err error) {
	s := unix.Statvfs_t{}
	if err = unix.Statvfs(path, &s); err != nil {
		return Info{}, err
	}
	reservedBlocks := uint64(s.Bfree) - uint64(s.Bavail)
	info = Info{
		Total:  uint64(s.Frsize) * (uint64(s.Blocks) - reservedBlocks),

	// Check if new heal sequence to be started overlaps with any
	// existing, running sequence
	hpath := pathJoin(h.bucket, h.object)
	for k, hSeq := range ahs.healSeqMap {
		if !hSeq.hasEnded() && (HasPrefix(k, hpath) || HasPrefix(hpath, k)) {
			errMsg = "The provided heal sequence path overlaps with an existing " +
				fmt.Sprintf("heal path: %s", k)
			return nil, errorCodes.ToAPIErr(ErrHealOverlappingPaths), errMsg
		}
	}

        this.artifactId = artifactId;
        this.version = version;
        this.hashCode = Objects.hash(groupId, artifactId, version);
    }

    public ArtifactModelSource(Path path, String groupId, String artifactId, String version) {
        super(path);
        this.groupId = groupId;
        this.artifactId = artifactId;
        this.version = version;
        this.hashCode = Objects.hash(groupId, artifactId, version);
    }

		// cases below where it doesn't.
		{`C:\long\foo.txt`, `\\?\C:\long\foo.txt`},
		{`C:/long/foo.txt`, `\\?\C:\long\foo.txt`},
		{`C:\long\foo\\bar\.\baz\\`, `\\?\C:\long\foo\bar\baz`},
		{`\\unc\path`, `\\unc\path`},
		{`long.txt`, `long.txt`},
		{`C:long.txt`, `C:long.txt`},
		{`c:\long\..\bar\baz`, `c:\long\..\bar\baz`},
		{`\\?\c:\long\foo.txt`, `\\?\c:\long\foo.txt`},
		{`\\?\c:\long/foo.txt`, `\\?\c:\long/foo.txt`},
	} {

    }

    // split the path apart
    Iterable<String> components = Splitter.on('/').omitEmptyStrings().split(pathname);
    List<String> path = new ArrayList<>();

    // resolve ., .., and //
    for (String component : components) {
      switch (component) {
        case ".":
          continue;
        case "..":
          if (path.size() > 0 && !path.get(path.size() - 1).equals("..")) {

# 请求体 - 多个参数 { #body-multiple-parameters }

既然我们已经知道了如何使用 `Path` 和 `Query`，下面让我们来了解一下请求体声明的更高级用法。

## 混合使用 `Path`、`Query` 和请求体参数 { #mix-path-query-and-body-parameters }

首先，毫无疑问地，你可以随意地混合使用 `Path`、`Query` 和请求体参数声明，**FastAPI** 会知道该如何处理。

你还可以通过将默认值设置为 `None` 来将请求体参数声明为可选参数：

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note | 注意

请注意，在这种情况下，将从请求体获取的 `item` 是可选的。因为它的默认值为 `None`。

///

    }

    @Test
    void defaultFs(
            @TempDir(cleanup = CleanupMode.ON_SUCCESS) Path cwd,
            @TempDir(cleanup = CleanupMode.ON_SUCCESS) Path userHome)
            throws Exception {
        invoke(cwd, userHome, List.of("verify"), List.of());
    }

    @Disabled("Enable it when fully moved to NIO2 with Path/Filesystem (ie MavenExecutionRequest)")
    @Test
    void jimFs() throws Exception {

import (
	"bufio"
	"errors"
	"fmt"
	"io"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"syscall"

	"github.com/prometheus/procfs/blockdevice"
	"golang.org/x/sys/unix"
)

// GetInfo returns total and free bytes available in a directory, e.g. `/`.
func GetInfo(path string, firstTime bool) (info Info, err error) {
	s := syscall.Statfs_t{}
	err = syscall.Statfs(path, &s)
	if err != nil {
		return Info{}, err
	}