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40-directions.go

@@ -0,0 +1,35 @@
+package main
+
+import "fmt"
+
+func pinger(pings chan<- string) {
+    for i := 0; i <= 10; i++ {
+        pings <- "ping"
+    }
+}
+
+func ponger(pings <-chan string, pongs chan<- string) {
+    for {
+	  <- pings
+      pongs <- "pong"
+    }
+}
+
+func printer(pongs <-chan string) {
+    for {
+        msg := <- pongs
+        fmt.Println(msg)
+    }
+}
+
+func main() {
+    var pings chan string = make(chan string)
+    var pongs chan string = make(chan string)
+
+    go pinger(pings)
+    go ponger(pings, pongs)
+    go printer(pongs)
+
+	var input string
+    fmt.Scanln(&input)
+}