修改错误封装

client/client.go

@@ -1,9 +1,14 @@
 package client
 
-const (
-	DBRecordHasExist = "记录已存在"
-	DBRecordNotExist = "记录不存在"
-)
+import "strings"
+
+func IsErrorDBRecordHasExist(err error) bool {
+	return strings.Contains(err.Error(), "记录已存在")
+}
+
+func IsErrorDBRecordNotExist(err error) bool {
+	return strings.Contains(err.Error(), "记录不存在")
+}
 
 const (
 	CompareEqual               = "equal"