duanhuang3074
2016-08-29 08:54
浏览 429
已采纳

在Golang中将int数组转换为字节数组

I'm trying to create some random int arrays and write it to a xyz.txt file in Golang.
How to convert ids which is an int array to byte array, as file.Write accepts []byte as a parameter. What is the correct way to achieve writing random integer arrays to a text file.

func main() {
    var id int
    var ids []int
    var count int

    f, err := os.Create("xyz.txt")
    check(err)

    defer f.Close()

    for j := 0; j < 5; j++ {
        count = rand.Intn(100)
        for i := 0; i < product_count; i++ {
            id = rand.Intn(1000)
            ids = append(product_ids, product_id)
        }
        n2, err := f.Write(ids)
        check(err)
        fmt.Printf("wrote %d bytes
", n2)
    }
}
  • 点赞
  • 写回答
  • 关注问题
  • 收藏
  • 邀请回答

1条回答 默认 最新

  • dtnpzghys01643322 2016-08-29 10:22
    已采纳

    You may use fmt.Fprint, as this simplified working sample:

    package main
    
    import (
        "bufio"
        "fmt"
        "math/rand"
        "os"
    )
    
    func main() {
        f, err := os.Create("xyz.txt")
        if err != nil {
            panic(err)
        }
        defer f.Close()
        w := bufio.NewWriter(f)
        defer w.Flush()
    
        for j := 0; j < 5; j++ {
            count := 4 //count := rand.Intn(100)
            for i := 0; i < count; i++ {
                fmt.Fprint(w, rand.Intn(1000), " ")
            }
            fmt.Fprintln(w)
        }
    }
    

    xyz.txt output file:

    81 887 847 59 
    81 318 425 540 
    456 300 694 511 
    162 89 728 274 
    211 445 237 106 
    
    点赞 打赏 评论

相关推荐 更多相似问题