Golang如何实现进度条加载动画效果

发布者：admin 发表于：453天前阅读数：1122 评论:0

Golang如何实现一个类似linux下安装软件的进度调效果？来看下代码

package main

import (
    "fmt"
    "os"
    "strings"
    "time"
)

func main() {
    for i := 0; i < 50; i++ {
        time.Sleep(100 * time.Millisecond)
        h := strings.Repeat("=", i) + strings.Repeat(" ", 49-i)
        fmt.Printf("\r%.0f%%[%s]", float64(i)/49*100, h)
        os.Stdout.Sync()
    }
    fmt.Println("\nAll System Go!")
}

带上颜色的升级版

package main

import (
    "fmt"
    "os"
    "strings"
    "time"
)

func main() {
    for i := 0; i < 100; i++ {
        time.Sleep(50 * time.Millisecond)
        h := strings.Repeat("=", i) + strings.Repeat(" ", 99-i)
        fmt.Printf("\r%.0f%%[%s]", float64(i)/99*100, color(h, i))

        os.Stdout.Sync()
    }
    fmt.Println("\nAll System Go!")
}

func color(str string, i int) string {
    return fmt.Sprintf("%c[%d;%d;%dm%s%c[0m", 0x1B, 1, 0, 30+(i%7), str, 0x1B)
}