diff --git a/game/ranking/list.go b/game/ranking/list.go
index 3ca31e6..346aea5 100644
--- a/game/ranking/list.go
+++ b/game/ranking/list.go
@@ -6,7 +6,7 @@ import (
 	"github.com/kercylan98/minotaur/utils/generic"
 )
 
-// NewList 创建一个排名从0开始的排行榜
+// NewList 创建一个排名从 0 开始的排行榜
 func NewList[CompetitorID comparable, Score generic.Ordered](options ...ListOption[CompetitorID, Score]) *List[CompetitorID, Score] {
 	rankingList := &List[CompetitorID, Score]{
 		event:       new(event[CompetitorID, Score]),
diff --git a/utils/crypto/base64.go b/utils/crypto/base64.go
index 7205ab6..a4d3fd0 100644
--- a/utils/crypto/base64.go
+++ b/utils/crypto/base64.go
@@ -1,4 +1,4 @@
-package kcrypto
+package crypto
 
 import "encoding/base64"
 
diff --git a/utils/crypto/crc.go b/utils/crypto/crc.go
index d529d92..985a002 100644
--- a/utils/crypto/crc.go
+++ b/utils/crypto/crc.go
@@ -1,4 +1,4 @@
-package kcrypto
+package crypto
 
 import (
 	"hash/crc32"
diff --git a/utils/crypto/md5.go b/utils/crypto/md5.go
index f0a02c3..cf5268d 100644
--- a/utils/crypto/md5.go
+++ b/utils/crypto/md5.go
@@ -1,4 +1,4 @@
-package kcrypto
+package crypto
 
 import (
 	"crypto/md5"
diff --git a/utils/crypto/sha1.go b/utils/crypto/sha1.go
index b00d634..396f932 100644
--- a/utils/crypto/sha1.go
+++ b/utils/crypto/sha1.go
@@ -1,4 +1,4 @@
-package kcrypto
+package crypto
 
 import (
 	"crypto/sha1"
diff --git a/utils/crypto/sha256.go b/utils/crypto/sha256.go
index 567ab0d..8c3e1ab 100644
--- a/utils/crypto/sha256.go
+++ b/utils/crypto/sha256.go
@@ -1,4 +1,4 @@
-package kcrypto
+package crypto
 
 import (
 	"crypto/sha256"
diff --git a/utils/super/json.go b/utils/super/json.go
index 446f7ea..df0fb4a 100644
--- a/utils/super/json.go
+++ b/utils/super/json.go
@@ -8,6 +8,7 @@ import (
 var json = jsonIter.ConfigCompatibleWithStandardLibrary
 
 // MarshalJSON 将对象转换为 json
+//   - 当转换失败时，将返回 json 格式的空对象
 func MarshalJSON(v interface{}) []byte {
 	b, err := json.Marshal(v)
 	if err != nil {