Merge branch 'master' into production

SageTools/Extension/Stream.cs

@@ -0,0 +1,35 @@
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SageTools.Extension
+{
+    public static partial class Extension
+    {
+        /// <summary>
+        /// 将流读为字符串
+        /// 注：默认使用UTF-8编码
+        /// </summary>
+        /// <param name="stream">流</param>
+        /// <param name="encoding">指定编码</param>
+        /// <returns></returns>
+        public static async Task<string> ReadToStringAsync(this Stream stream, Encoding encoding = null)
+        {
+            encoding ??= Encoding.UTF8;
+
+            if (stream.CanSeek)
+            {
+                stream.Seek(0, SeekOrigin.Begin);
+            }
+
+            var resStr = await new StreamReader(stream, encoding).ReadToEndAsync();
+
+            if (stream.CanSeek)
+            {
+                stream.Seek(0, SeekOrigin.Begin);
+            }
+
+            return resStr;
+        }
+    }
+}