还原一些readyonly项

AxibugEmuOnline.Client/Assets/Script/AppMain/MsgBool.cs

@@ -6,6 +6,9 @@ public struct MsgBool
     public string ErrorMsg;
     public bool Value;
 
+    //low C# readonly
+	//public override readonly string ToString()
+
 	public override string ToString()
     {
         if (Value)
@@ -33,6 +36,7 @@ public struct MsgBool
         return msgBool.Value;
     }
 
+	//low C# 
 	//public static implicit operator (bool, string)(MsgBool msgBool)
 	//{
 	//    return (msgBool.Value, msgBool.ErrorMsg);

AxibugEmuOnline.Client/Assets/Script/AppMain/NesEmulator/NesControllerMapper.cs

@@ -137,6 +137,8 @@ namespace AxibugEmuOnline.Client
                 m_keyListener = Controller.GetKey(m_hostController.ControllerIndex, m_buttonType);
             }
         }
+		//low C# readonly
+		//public readonly struct KeyListener
 
 		public struct KeyListener
         {