learn goroutine and channel

gochannel.go

package main

import (
    "fmt"
)

func generate() chan int {
    ch := make(chan int)
    go func() {
        for i := 2; ;i++ {
            ch <- i
        }
    }()
    return ch
}

func goPrint(ch chan int) {
    for i := 1; i <= 100; i++ {
       fmt.Print(<-ch)
    }
}

func main() {
    go goPrint(generate())
}