代码语言：go复制
package main
import (
"fmt"
"time"
)
func main() {
ch1 := make(chan struct{})
ch2 := make(chan struct{})
ch3 := make(chan struct{})
go func() {
for i := 1; i <= 100; i = 3 {
<-ch1
fmt.Println(i)
ch2 <- struct{}{}
}
}()
go func() {
for i := 2; i <= 100; i = 3 {
<-ch2
fmt.Println(i)
ch3 <- struct{}{}
}
}()
go func() {
for i := 3; i <= 100; i = 3 {
<-ch3
fmt.Println(i)
ch1 <- struct{}{}
}
}()
ch1 <- struct{}{}
time.Sleep(time.Second * 5)
}
