update 添加注释

game/game_cluster/internal/mdb/eventmodels/userRewardEvent.go

@@ -6,10 +6,10 @@ import "github.com/mhaya/game/game_cluster/internal/data"
 type UserRewardEventContent struct {
 	UserBasic
 	EventBasic
-	Source    int               `json:"source"`
+	Source    int               `json:"source"` // 奖励来源
 	SourceId  int               `json:"sourceId"`
-	AddReward []data.ItemReward `json:"AddReward"`
-	SubReward []data.ItemReward `json:"SubReward"`
+	AddReward []data.ItemReward `json:"AddReward"` // 增加的道具
+	SubReward []data.ItemReward `json:"SubReward"` // 减少的道具
 	Desc      interface{}       `json:"desc"`
 }