From 4cb7296767bc42d5e3efba7075f55c72fb62c9b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=8D=E5=81=9A=E7=A0=81=E5=86=9C?= <599854767@qq.com>
Date: Sat, 8 Jan 2022 21:46:48 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E6=88=AA=E5=8F=96=E6=8C=87?=
 =?UTF-8?q?=E5=AE=9A=E5=86=85=E5=AE=B9=E7=9B=B4=E6=8E=A5=E6=96=B9=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Infrastructure/Extensions/StringExtension.cs | 28 ++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/Infrastructure/Extensions/StringExtension.cs b/Infrastructure/Extensions/StringExtension.cs
index 46c1baa..8df3173 100644
--- a/Infrastructure/Extensions/StringExtension.cs
+++ b/Infrastructure/Extensions/StringExtension.cs
@@ -106,5 +106,33 @@ namespace Infrastructure.Extensions
             return string.IsNullOrEmpty(str) ? str : str.Substring(0, 1).ToUpper() + str[1..];
         }
 
+        /// <summary>
+        /// 截取指定字符串中间内容
+        /// </summary>
+        /// <param name="sourse"></param>
+        /// <param name="startstr"></param>
+        /// <param name="endstr"></param>
+        /// <returns></returns>
+        public static string SubstringBetween(this string sourse, string startstr, string endstr)
+        {
+            string result = string.Empty;
+            int startindex, endindex;
+            try
+            {
+                startindex = sourse.IndexOf(startstr);
+                if (startindex == -1)
+                    return result;
+                string tmpstr = sourse.Substring(startindex + startstr.Length);
+                endindex = tmpstr.IndexOf(endstr);
+                if (endindex == -1)
+                    return result;
+                result = tmpstr.Remove(endindex);
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("MidStrEx Err:" + ex.Message);
+            }
+            return result;
+        }
     }
 }