progress_indicator.go

package main

import (
        "fmt"
        "time"
)

func main() {
        // marks := []rune{0x25F7, 0x25F6, 0x25F5, 0x25F4}
        // marks := []rune{0x25CB, 0x25D4, 0x25D1, 0x25D5, 0x25CF, 0x25C9, 0x25CE}
        // marks := []rune{0x25AB, 0x25C7}
        // marks := []rune{0x25A0, 0x25A3, 0x25A1, 0x25A3}
        // marks := []rune{0x25F7, 0x25F6, 0x25F5, 0x25F4}
        marks := []rune{0x25E2, 0x25E3, 0x25E4, 0x25E5}

        for i := 0; i < 50; i++ {
                fmt.Printf("\r[%c]", marks[i%len(marks)])
                time.Sleep(300 * time.Millisecond)
        }
        fmt.Println("\r         \r")
}