Merge pull request #5293 from PlayMcBKuwu/main

修复: 判断语言是否为中文 -> 判断语言是否为中文（中国大陆）

Plain Craft Launcher 2/Modules/Base/ModBase.vb

@@ -1975,12 +1975,13 @@ RetryDir:
     End Function
 
     ''' <summary>
-    ''' 判断当前系统语言是否为中文。
+    ''' 判断当前系统语言是否为中文（中国大陆）。
     ''' </summary>
     Public Function IsSystemLanguageChinese() As Boolean
-        Return CultureInfo.CurrentCulture.TwoLetterISOLanguageName = "zh" OrElse CultureInfo.CurrentUICulture.TwoLetterISOLanguageName = "zh"
+        Return CultureInfo.CurrentCulture.Name = "zh-CN" OrElse CultureInfo.CurrentUICulture.Name = "zh-CN"
     End Function
 
+
     Private Uuid As Integer = 1
     Private UuidLock As Object
     ''' <summary>
@@ -2864,4 +2865,4 @@ Retry:
 
 #End Region
 
-End Module
+End Module