update example of gtcp

geg/net/gtcp/server_client/gtcp_client.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+    "github.com/gogf/gf/g/net/gtcp"
+    "github.com/gogf/gf/g/os/glog"
+    "github.com/gogf/gf/g/util/gconv"
+    "time"
+)
+
+func main() {
+    // Client
+    conn, err := gtcp.NewConn("127.0.0.1:8999")
+    if err != nil {
+        panic(err)
+    }
+    defer conn.Close()
+    for i := 0; i < 3; i++ {
+        if err := conn.Send([]byte(gconv.String(i))); err != nil {
+            glog.Error(err)
+        }
+        time.Sleep(time.Second)
+    }
+}

geg/net/gtcp/server_client/gtcp_server.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+    "fmt"
+    "github.com/gogf/gf/g/net/gtcp"
+)
+
+func main() {
+    // Server
+    gtcp.NewServer("127.0.0.1:8999", func(conn *gtcp.Conn) {
+        defer conn.Close()
+        for {
+            data, err := conn.Recv(-1)
+            if len(data) > 0 {
+                fmt.Println(string(data))
+            }
+            if err != nil {
+                // client closed, err will be: EOF
+                fmt.Println(err)
+                break
+            }
+        }
+    }).Run()
+}