Kotlin

drawRating.go

package main

import "fmt"

func drawRating(vote int) string {
    if vote >= 0 && vote <= 20 {
        return "★☆☆☆☆"
    } else if vote > 20 && vote <= 40 {
        return "★★☆☆☆"
    } else if vote > 40 && vote <= 60 {
        return "★★★☆☆"
    } else if vote > 60 && vote <= 80 {
        return "★★★★☆"
    } else if vote > 80 && vote <= 100 {
        return "★★★★★"
    } else {
        return "☆☆☆☆☆"
    }
}

func main() {
    fmt.Println(drawRating(0))  // ★☆☆☆☆
    fmt.Println(drawRating(1))  // ★☆☆☆☆
    fmt.Println(drawRating(50)) // ★★★☆☆
    fmt.Println(drawRating(99)) // ★★★★★
}