go.blog: add "Inside the Go Playground" article

R=r, rsc, dsymonds
https://golang.org/cl/39180043

1 files changed, 35 insertions, 0 deletions

diff --git a/content/playground/net.go b/content/playground/net.go
new file mode 100644
index 0000000..2728055
--- /dev/null
+++ b/content/playground/net.go
@@ -0,0 +1,35 @@
+package main
+
+import (
+	"io"
+	"log"
+	"net"
+	"os"
+)
+
+func main() {
+	l, err := net.Listen("tcp", "127.0.0.1:4000")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer l.Close()
+
+	go dial()
+
+	c, err := l.Accept()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer c.Close()
+
+	io.Copy(os.Stdout, c)
+}
+
+func dial() {
+	c, err := net.Dial("tcp", "127.0.0.1:4000")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer c.Close()
+	c.Write([]byte("Hello, network\n"))
+}