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go语言日期时间比较及日期列表生成

关键词: golang

go语言日期时间比较及日期列表生成

```
package main

import (
    "fmt"
    "time"
)

/*
    格式可以是下面的其中一种
    "2018-01-02"
    "2018-01-02 03:04:05"
*/
func DateTimeCompare(dateTime1, dateTime2 string) string {
    len1 := len(dateTime1)
    len2 := len(dateTime2)
    if len1 != len2 {
        return "error"
    }
    if len1 != 10 && len1 != 19 {
        return "error"
    }
    if dateTime1 == dateTime2 {
        return "="
    }
    var layout string
    if len1 == 10 {
        layout = "2006-01-02"
    } else {
        layout = "2006-01-02 15:04:05"
    }
    theDateTime1, _ := time.Parse(layout, dateTime1)
    theDateTime2, _ := time.Parse(layout, dateTime2)
    if(theDateTime1.Unix() < theDateTime2.Unix()) {
        return "<"
    } else {
        return ">"
    }
}

func DateBeforeToday(date string) bool {
    today := time.Now().Format("2006-01-02")
    return DateTimeCompare(date, today) == "<"
}

func MakeDateList(startDate, endDate string) []string {
    var list []string
    date, _ := time.Parse("2006-01-02", startDate)
    list = append(list, startDate)
    for {
        date = date.AddDate(0, 0, 1)
        nextDate := date.Format("2006-01-02")
        if nextDate != endDate {
            list = append(list, nextDate)
        } else {
            break
        }
    }
    list = append(list, endDate)
    return list
}

func main() {
    result1 := DateTimeCompare("2018-11-25 10:11:12", "2018-11-25 10:11:10")
    result2 := DateTimeCompare("2018-11-24", "2018-11-25")
    result3 := MakeDateList("2018-11-15", "2018-12-15")
    result4 := DateBeforeToday("2018-11-26")
    fmt.Println(result1)
    fmt.Println(result2)
    fmt.Println(result3)
    fmt.Println(result4)
}
```

admin
2018-11-27 21:08:32
go

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go语言日期时间比较及日期列表生成