讓N個協程交替打印1-100

package main

import (
   "fmt"
)

//讓N個協程交替打印1-100　　讓N個協程交替打印1-100
/*
利用緩存通道進行阻塞的傳遞
*/
func main() {
   gorutinenum := 5
   var chanslice []chan int
   exitchan := make(chan int)

   for i := 0; i < gorutinenum; i++ {
      chanslice = append(chanslice, make(chan int, 1))
   }

   res := 0
   j := 0
   for i := 0; i < gorutinenum; i ++ {
      go func(i int) {
         for {
            <-chanslice[i]
            if res > 100 {
               exitchan <- 1
               break
            }

            fmt.Println(fmt.Sprintf("gorutine%v:%v", i, res))
            res ++
            
            if j == gorutinenum-1 {
               j = 0
            }else {
               j ++
            }
            chanslice[j] <- 1
         }
      }(i)
   }
   chanslice[0] <- 1

   select {
   case <-exitchan:
      fmt.Println("end")
   }
}