fix

models/tables/trade_analysis/trade_analysis.go

@@ -91,6 +91,7 @@ func GetExchangeClassify(exchange string) (list []TradeClassifyName, err error)
 		Table(tableName).
 		Select("classify_name, classify_type").
 		Group("classify_name, classify_type").
+		Where("rank <=20 and rank > 0 ").
 		Order(orderStr).Scan(&list).Error
 	return
 }
@@ -153,7 +154,7 @@ func GetTradeTopLastDataTime(exchange string, classifyName, classifyType string)
 	if exchange == "zhengzhou" {
 		err = global.MYSQL["data"].
 			Table(tableName).
-			Where("classify_name=? ", classifyName).
+			Where("classify_name=? ", classifyType).
 			Order("data_time desc").First(&item).Error
 	}else {
 		err = global.MYSQL["data"].