[英]Absolute difference between time.Duration
I have 2 variables with time.Duration
type.我有 2 个time.Duration
类型的变量。 I need to find the difference in duration between them.我需要找到它们之间的持续时间差异。
For example:例如:
Both variables can have different values for hours, minutes etc.两个变量可以有不同的小时、分钟等值。
How can I do this in Go?如何在 Go 中做到这一点?
Try this:尝试这个:
package main
import (
"fmt"
"time"
)
func main() {
a := 1 * time.Second
b := 10 * time.Second
c := absDiff(a, b)
fmt.Println(c) // 9s
fmt.Println(absDiff(b, a)) // 9s
}
func absDiff(a, b time.Duration) time.Duration {
if a >= b {
return a - b
}
return b - a
}
This is another form:这是另一种形式:
package main
import (
"fmt"
"time"
)
func main() {
a := 1 * time.Second
b := 10 * time.Second
c := abs(a - b)
fmt.Println(c) // 9s
}
func abs(a time.Duration) time.Duration {
if a >= 0 {
return a
}
return -a
}
The function Abs
has been added to the language, so you can just use that instead of rolling your own: function Abs
已添加到该语言中,因此您可以使用它而不是自己滚动:
func main() {
d1 := time.Second * 10
d2 := time.Second
sub1 := d1 - d2
sub2 := d2 - d1
fmt.Println(sub1.Abs()) // 9s
fmt.Println(sub2.Abs()) // 9s
}
An elegant solution is to use bitshift >>一个优雅的解决方案是使用 bitshift >>
func absDuration(d time.Duration) time.Duration {
s := d >> 63
return (d ^ s) - s
}
bitshift in Golang is logic if the left operand is negative如果左操作数为负,Golang 中的位移是逻辑
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.