获取sheet编码正则匹配

performance/Performance.Services/ExtractExcelService/ExtractHelper/ExcelHelper.cs

@@ -242,7 +242,7 @@ public static string NoBlank(this string @string)
 
         public static string GetNo(this string @string)
         {
-            var match = Regex.Match(@string, "^(1.[0-9].[1-9])|(^[1-9]+.[1-9]+)");
+            var match = Regex.Match(@string, "^(1.[0-9]+.[1-9])|(^[1-9]+.[1-9]+)");
             return match.Value;
         }