main.go 源码
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials : https://learngoprogramming.com
// In-person training : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus
package main
import (
"fmt"
"os"
"strings"
"time"
)
func main() {
if len(os.Args) != 2 {
fmt.Println("Give me a month name")
return
}
year := time.Now().Year()
leap := year%4 == 0 && (year%100 != 0 || year%400 == 0)
days, month := 28, os.Args[1]
switch strings.ToLower(month) {
case "april", "june", "september", "november":
days = 30
case "january", "march", "may", "july",
"august", "october", "december":
days = 31
case "february":
if leap {
days = 29
}
default:
fmt.Printf("%q is not a month.\n", month)
return
}
fmt.Printf("%q has %d days.\n", month, days)
}
你可能感兴趣的文章
go main
go main
go main
go main
go main
go Header
go main
go main
go main
go main