fix bug

controllers/article.go

@@ -2,15 +2,12 @@ package controllers
 
 import (
 	"encoding/json"
-	"fmt"
 	"hongze/hongze_cygx/models"
 	"hongze/hongze_cygx/utils"
 	"html"
 	"strconv"
 	"strings"
 	"time"
-
-	"github.com/astaxie/beego/cache"
 )
 
 type ArticleController struct {