如何处理Go语言中的并发文件的文件检索和索引问题？

type FileSearch struct {
    Dir       string        // 指定的目录
    Condition string        // 检索条件
    Result    chan string   // 检索结果
}

func SearchFile(f FileSearch) {
    filepath.Walk(f.Dir, func(path string, info os.FileInfo, err error) error {
        if err != nil {
            return err
        }
        if !info.IsDir() && strings.Contains(info.Name(), f.Condition) {
            f.Result <- path
        }
        return nil
    })
    close(f.Result)
}

func main() {
    result := make(chan string)
    go SearchFile(FileSearch{
        Dir:       "/path/to/dir",
        Condition: "example",
        Result:    result,
    })
    for path := range result {
        fmt.Println(path)
    }
}

type FileIndex struct {
    Dir    string                   // 指定的目录
    Result map[string]chan string   // 索引结果
}

func IndexFile(f FileIndex) {
    filepath.Walk(f.Dir, func(path string, info os.FileInfo, err error) error {
        if err != nil {
            return err
        }
        if !info.IsDir() {
            file, err := os.Open(path)
            defer file.Close()
            if err != nil {
                return err
            }
            scanner := bufio.NewScanner(file)
            for scanner.Scan() {
                line := scanner.Text()
                f.Result[line] <- path
            }
        }
        return nil
    })
    for _, ch := range f.Result {
        close(ch)
    }
}

func main() {
    result := make(map[string]chan string)
    result["example1"] = make(chan string)
    result["example2"] = make(chan string)
    go IndexFile(FileIndex{
        Dir:    "/path/to/dir",
        Result: result,
    })
    for key, ch := range result {
        fmt.Println("Key:", key)
        for path := range ch {
            fmt.Println(path)
        }
    }
}