第一版完成

api/hello/v1/hello.go

@@ -0,0 +1,12 @@
+package v1
+
+import (
+	"github.com/gogf/gf/v2/frame/g"
+)
+
+type HelloReq struct {
+	g.Meta `path:"/hello" tags:"Hello" method:"get" summary:"You first hello api"`
+}
+type HelloRes struct {
+	g.Meta `mime:"text/html" example:"string"`
+}