英文:
Swap Concurrent Function
问题
我正在尝试弄清楚如何使Go语言中的前向Swap函数并发，以便学习概念目的：
package main
import "fmt"
func Swap(a, b int) (int, int) {
return b, a
}
func main() {
for i := 0; i < 10; i++ {
fmt.Println(Swap(i+1, i))
}
}
到目前为止，我想出了这个解决方案：
package main
import "fmt"
// 只有发送通道
func Swap(a, b chan<- int) {
go func() {
for i := 0; i < 10; i++ {
a <- i + 1
b <- i
}
}()
}
func main() {
a := make(chan int)
b := make(chan int)
Swap(a, b)
for i := 0; i < 10; i++ {
fmt.Printf("chan a received: %d | chan b received: %d\n", <-a, <-b)
}
}
它似乎可以工作，但我不能确定。
我该如何衡量这个，并且有人知道如何真正使一个简单的Swap函数在Go中并发吗？
英文:
I am trying to figure out how to make concurrent the forward Swap function in Go for learning concepts purpose:
package main
import "fmt"
func Swap(a, b int) (int, int) {
return b, a
}
func main() {
for i := 0; i <10; i++ {
fmt.Println(Swap(i+1, i))
}
}
So far I have came up with this solution:
package main
import "fmt"
// Only Send Channel
func Swap(a, b chan<- int) {
go func() {
for i := 0; i < 10; i++ {
a <- i + 1
b <- i
}
}()
}
func main() {
a := make(chan int)
b := make(chan int)
Swap(a, b)
for i := 0; i < 10; i++ {
fmt.Printf("chan a received: %d | chan b received: %d\n", <-a, <-b)
}
}
It seems to work but I cannot be sure about it.
How can I measure this and does anyone knows how to really make a simple Swap function concurrent in Go?
答案1
得分: 0
很抱歉，我知道如何解决这个问题。花了我几天的时间才能做到这一点，就在我在这个论坛上发布问题几个小时后，我发现了解决方法。我将发布代码和解决方法，这是我在一次高级 Golang 工作面试中得到的问题，我当时无法回答，希望这对某人有所帮助。
// 将 int 切片类型的 channel 作为参数传递
// 通过 channel 发送交换后的信息
func Swap(a, b int, ch chan []int) {
ch <- []int{b, a}
}
func main() {
ch := make(chan []int)
for i := 0; i < 100; i++ {
// 使用创建的 channel 调用 Worker
go Swap(i+1, i, ch)
}
for i := 0; i < 100; i++ {
// 接收 channel 的值
fmt.Println(<-ch)
}
}
我非常感谢任何关于这个问题的评论、改进和概念参考。
英文:
I am sorry for the question but I figured out how to solve this.
It took days for me to be able to do this and on the day I posted at this forum some hours later I discovered how to solve it.
I am going to post the code and the walkthrough this was given to me in a Senior Golang Job Interview and I could not answer, I hope this can help someone.
// Pass as a parameter a int slice of type channel
// Send the swapped information throw the channel
func Swap(a, b int, ch chan []int) {
ch <- []int{b, a}
}
func main() {
ch := make(chan []int)
for i := 0; i < 100; i++ {
// Call Worker with the created channel
go Swap(i+1, i, ch)
}
for i := 0; i < 100; i++ {
// Receive Channel Value
fmt.Println(<-ch)
}
}
I really appreciate any comments, improvements and conceptual references on this.
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