diff --git a/api/struct.go b/api/struct.go
index 46216af..5c57328 100644
--- a/api/struct.go
+++ b/api/struct.go
@@ -126,18 +126,18 @@ type Article struct {
 }
 
 type Category struct {
-	ID         int
-	Title      string
-	Keyword    string
-	ParentID   int
-	CreateTime time.Time
-	UpdateTime time.Time
-	Status     int
-	Content    string
-	Sort       int
-	Image      string
-	ImageNum   int
-	ArticleNum int
+	ID         int       `json:"id"`
+	Title      string    `json:"title"`
+	Keyword    string    `json:"keyword"`
+	ParentID   int       `json:"parent_id"`
+	Status     int       `json:"status"`
+	Content    string    `json:"content"`
+	Sort       int       `json:"sort"`
+	Image      string    `json:"image"`
+	ImageNum   int       `json:"image_num"`
+	ArticleNum int       `json:"article_num"`
+	CreateTime time.Time `json:"create_time"`
+	UpdateTime time.Time `json:"update_time"`
 }
 
 // TableName 方法用于自定义表名