From 2da6409a0bd7ae8bdcd4818768016b048f4d806d Mon Sep 17 00:00:00 2001
From: xiaoxiao
 <gandanxiangzhao@gandanxiangzhaojiankangzhongguodeMacBook-Pro.local>
Date: Fri, 11 Jul 2025 17:18:49 +0800
Subject: [PATCH] =?UTF-8?q?=E7=A9=BA=E5=AD=97=E7=AC=A6=E4=B8=B2=E5=88=A4?=
 =?UTF-8?q?=E6=96=AD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 commons/basic/src/main/ets/utils/ChangeUtil.ets | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/commons/basic/src/main/ets/utils/ChangeUtil.ets b/commons/basic/src/main/ets/utils/ChangeUtil.ets
index b87e1d4..0781c04 100644
--- a/commons/basic/src/main/ets/utils/ChangeUtil.ets
+++ b/commons/basic/src/main/ets/utils/ChangeUtil.ets
@@ -188,5 +188,13 @@ export class ChangeUtil {
     const g = parseInt(hex.slice(3, 5), 16);
     const b = parseInt(hex.slice(5, 7), 16);
     return `rgba(${r}, ${g}, ${b}, ${alpha})`;
-  };
+  }
+
+  static stringIsUndefinedAndNull (string:string | undefined):boolean {
+    if (string == undefined || string == "null" || string == "<null>" || string == "(null)" || string == 'undefined' || string.length <= 0) {
+      return true
+    } else {
+      return false
+    }
+  }
 }
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