fix memory cache.

conf/types.go

@@ -1,6 +1,8 @@
 package conf
 
-import "git.apinb.com/bsm-sdk/core/vars"
+import (
+	"git.apinb.com/bsm-sdk/core/vars"
+)
 
 type Base struct {
 	Service        string   `yaml:"Service"`   // 服务名称
@@ -93,3 +95,8 @@ type LogConf struct {
 	File     bool          `yaml:"File"`
 	Remote   bool          `yaml:"Remote"`
 }
+
+type MemoryCacheConf struct {
+	DefaultExpiration int `yaml:"DefaultExpiration"`
+	CleanupInterval   int `yaml:"CleanupInterval"`
+}