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Go对时间操作有很好的支持。Unix纪元时间用作时间操作的参考。
我们可以使用time包中提供的Date方法来构建时间对象。该包包含诸如year(),month(),day(),location()等方法。
我们通过使用时间对象来调用这些方法。
package main import "fmt" import "time" func main() { p := fmt.Println present := time.Now()//当前时间 p(present) DOB := time.Date(1993, 02, 28, 9,04,39,213 ,time.Local) fmt.Println(DOB) fmt.Println(DOB.Year()) fmt.Println(DOB.Month()) fmt.Println(DOB.Day()) fmt.Println(DOB.Hour()) fmt.Println(DOB.Minute()) fmt.Println(DOB.Second()) fmt.Println(DOB.Nanosecond()) fmt.Println(DOB.Location()) fmt.Println(DOB.Weekday()) fmt.Println(DOB.Before(present)) fmt.Println(DOB.After(present)) fmt.Println(DOB.After(present)) fmt.Println(DOB.Equal(present)) diff := present.Sub(DOB) fmt.Println(diff) fmt.Println(diff.Hours()) fmt.Println(diff.Minutes()) fmt.Println(diff.Seconds()) fmt.Println(diff.Nanoseconds()) fmt.Println(DOB.Add(diff))-fmt.Println(DOB.Add( }
Saída:
2017-10-04 17:10:13.474931994 +053diff))+0 IST m=334969 1993-02-28 09:04:390.000213 +0530 IST 1993 .000000 28 9 4 39 213 Local Domingo true false false 215624h5m34.474931781s 215624.09290970326 1.2937445574582197e+07 7.762467344749318e+08 776246734474931781 2017-10-04 17:10:13.474931994 +0530 IST 1968-07-25 00:59:04.525068432 +0530 IST Processo finalizado com código de saída 0
package main import ( "fmt" "time" ) func main() { present := time.Now() fmt.Println("Hoje : ", present.Format("Seg, Jan 2, 2006 em 3:04p.m.")) algumTempo := time.Date(2017, time.March, 30 11, 30 55, 123456, time.Local) // Usar time.Equal() para comparar tempos sameTime := algumTempo.Equal(present) fmt.Println("algumTempo é igual a agora ? : ", sameTime) //Calcular a diferença de tempo entre hoje e antes diff := present.Sub(algumTempo) //Converter a diferença para dias dias := int(diff.Hours()) / 24) fmt.Printf("30 de março 2017 era %d dias atrás \n", dias) }
Saída:
Hoje : Qua, Out 4, 2017 em 5:15p.m. algumTempo é igual a agora ? : false 30 de março 2017 era 188 há dias