feat(middle): update middle define var

pkg/middle/define.go

@@ -6,7 +6,7 @@ import (
 
 var (
 	oneMiddle        sync.Once
-	MiddleWareDriver *MiddleWare
+	middleWareDriver *MiddleWare
 )
 
 const (

plugins/log-middle/middleware.go

@@ -1,6 +1,8 @@
 package log_middle
 
 import (
+	"fmt"
+
 	"gitee.com/timedb/wheatCache/plugins"
 )
 
@@ -11,7 +13,7 @@ func (i *logMiddle) Init() {
 }
 
 func (i *logMiddle) Exec(interface{}) (interface{}, error) {
-
+	fmt.Println("logMiddle")
 	return "", nil
 }