duanhuang3074 2016-08-29 08:54
浏览 544
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)
    }
}
  • 写回答

1条回答 默认 最新

  • dtnpzghys01643322 2016-08-29 10:22
    关注

    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 
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 在获取boss直聘的聊天的时候只能获取到前40条聊天数据
  • ¥20 关于URL获取的参数,无法执行二选一查询
  • ¥15 液位控制,当液位超过高限时常开触点59闭合,直到液位低于低限时,断开
  • ¥15 marlin编译错误,如何解决?
  • ¥15 有偿四位数,节约算法和扫描算法
  • ¥15 VUE项目怎么运行,系统打不开
  • ¥50 pointpillars等目标检测算法怎么融合注意力机制
  • ¥20 Vs code Mac系统 PHP Debug调试环境配置
  • ¥60 大一项目课,微信小程序
  • ¥15 求视频摘要youtube和ovp数据集