Go语言计算指定年月天数的方法
发布时间:2020-12-16 19:33:56 所属栏目:大数据 来源:网络整理
导读:本篇章节讲解Go语言计算指定年月天数的方法。供大家参考研究。具体实现方法如下: 复制代码 代码如下: package main import ( "fmt" "bufio" "os" "regexp" "strconv" ) func main() { year := input("year","^[0-9]{1}[0-9]{3}$") month := input("
本篇章节讲解Go语言计算指定年月天数的方法。分享给大家供大家参考。具体实现方法如下: 复制代码 代码如下: package main
import ( "fmt" "bufio" "os" "regexp" "strconv" ) func main() { year := input("year","^[0-9]{1}[0-9]{3}$") month := input("month","^(0{1}[0-9]{1}|1{1}[0-2]{1})$") count(year,month) fmt.Println("Press Enter button to continue ...") reader := bufio.NewReader(os.Stdin) lastInput,_,err := reader.ReadRune() if err != nil { fmt.Fprintln(os.Stderr,"Occur error when input (last) '",lastInput,"':",err) } return } func count(year int,month int) (days int) { if month != 2 { if month == 4 || month == 6 || month == 9 || month == 11 { days = 30 } else { days = 31 fmt.Fprintln(os.Stdout,"The month has 31 days"); } } else { if (((year % 4) == 0 && (year % 100) != 0) || (year % 400) == 0) { days = 29 } else { days = 28 } } fmt.Fprintf(os.Stdout,"The %d-%d has %d days.n",year,month,days) return } func input(name string,regexpText string) (number int) { var validNumber = false for !validNumber { fmt.Println("Please input a",name,": ") reader := bufio.NewReader(os.Stdin) inputBytes,err := reader.ReadLine() if err != nil { fmt.Fprintln(os.Stderr,"Occur error when input",":",err) continue } inputText := string(inputBytes) validNumber,err = regexp.MatchString(regexpText,inputText) if err != nil { fmt.Fprintln(os.Stderr,"Occur error when match","(",inputText,"):",err) continue } if validNumber { number,err = strconv.Atoi(inputText) if err != nil { fmt.Fprintln(os.Stderr,"Occur error when convert",err) continue } } else { fmt.Fprintln(os.Stdout,"The",") does not have the correct format!") } } fmt.Println("The input",": ",number) return } 希望本文所述对大家的Go语言程序设计有所帮助。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |