feat: added modules

db/utils/utils.go

@@ -0,0 +1,19 @@
+package utils
+
+import "io"
+
+func Close(c io.Closer) {
+	err := c.Close()
+	if err != nil {
+		//log.WithError(err).Error("关闭资源文件失败。")
+	}
+}
+
+func ContainsString(list []string, item string) bool {
+	for _, d := range list {
+		if d == item {
+			return true
+		}
+	}
+	return false
+}