Base64转图片关闭流

AOI/util/Base64Util.cs

@@ -20,13 +20,15 @@ namespace AOI
             {
             {
                 return "";
                 return "";
             }
             }
+            using (MemoryStream memStream = new MemoryStream())
+            {
                 BinaryFormatter binFormatter = new BinaryFormatter();
                 BinaryFormatter binFormatter = new BinaryFormatter();
-            MemoryStream memStream = new MemoryStream();
                 binFormatter.Serialize(memStream, img);
                 binFormatter.Serialize(memStream, img);
                 byte[] bytes = memStream.GetBuffer();
                 byte[] bytes = memStream.GetBuffer();
                 string base64 = Convert.ToBase64String(bytes);
                 string base64 = Convert.ToBase64String(bytes);
                 return base64;
                 return base64;
             }
             }
+        }
 
 
         /// <summary>
         /// <summary>
         /// 将Base64字符串转换为图片
         /// 将Base64字符串转换为图片
@@ -38,10 +40,12 @@ namespace AOI
                 return null;
                 return null;
             }
             }
             byte[] bytes = Convert.FromBase64String(base64);
             byte[] bytes = Convert.FromBase64String(base64);
-            MemoryStream memStream = new MemoryStream(bytes);
+            using (MemoryStream memStream = new MemoryStream(bytes))
+            {
                 BinaryFormatter binFormatter = new BinaryFormatter();
                 BinaryFormatter binFormatter = new BinaryFormatter();
                 Image img = (Image)binFormatter.Deserialize(memStream);
                 Image img = (Image)binFormatter.Deserialize(memStream);
                 return img;
                 return img;
             }
             }
         }
         }
+    }
 }
 }