update project structure

example/container/gqueue/gqueue.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/gogf/gf/container/gqueue"
+	"github.com/gogf/gf/os/gtime"
+	"github.com/gogf/gf/os/gtimer"
+)
+
+func main() {
+	q := gqueue.New()
+	// 数据生产者，每隔1秒往队列写数据
+	gtimer.SetInterval(time.Second, func() {
+		v := gtime.Now().String()
+		q.Push(v)
+		fmt.Println("Push:", v)
+	})
+
+	// 3秒后关闭队列
+	gtimer.SetTimeout(3*time.Second, func() {
+		q.Close()
+	})
+
+	// 消费者，不停读取队列数据并输出到终端
+	for {
+		if v := q.Pop(); v != nil {
+			fmt.Println(" Pop:", v)
+		} else {
+			break
+		}
+	}
+}