tenntenn

package main

import (
	"fmt"
	"math/rand"
	"time"
	"bufio"
	"strings"
	"strconv"
	"os"

tenntenn

func input(ans chan int) {
	r := bufio.NewReader(os.Stdin)
	for {

		line, _, err := r.ReadLine()
		if err != nil {
			fmt.Print(">")
			continue
		}

tenntenn

ans := make(chan int)
go input(ans)

rnd := rand.New(rand.NewSource(time.Now().UnixNano()))
count := 0
for i:= 1; i <= 10; i++ {
	n := rnd.Intn(100)
	m := rnd.Intn(100)
	fmt.Printf("%2d : %2d + %2d = ", i, n, m)
	select {

tenntenn

func countdown(n uint) {
	for i := 0; i < int(n); i++ {
		fmt.Print(int(n)-i)
		<-time.After(1 * time.Second)
		fmt.Print(" ")
	}
	fmt.Println()
	fmt.Println("Start!!")
}

tenntenn

package main

import (
	"fmt"
	"bufio"
	"os"
	"strconv"
	"strings"
	"math/rand"
	"time"

tenntenn

// バッファなし
ch := make(chan int)

// バッッファあり
chbuf := make(chan int, 100)

tenntenn

// 受信専用
rch := make(<-chan int)

// 送信専用
sch := make(chan<- int)

tenntenn

package main

func main() {
	ch := make(<-chan int)
	ch <- 100	
}

tenntenn

package main

func main() {
	ch := make(chan<- int)
	<-ch
}

tenntenn

package main

import "fmt"

func main() {

  	// read and write
	ch1 := make(chan int)
	fmt.Printf("ch1=%t\n", ch1)