Speech, auto avoid, bug fixes, iu improments

LearningChineseFixed/Classes/CCharStats.cs

@@ -0,0 +1,28 @@
+namespace LearningChineseFixed
+{
+    public class CCharStats
+    {
+        public CChar cchar { get; set; }
+        public int NumOfCorrects { get; set; } = 0;
+        public int NumOfWrongs { get; set; } = 0;
+        public int TotalAnswers { get => NumOfCorrects + NumOfWrongs; }
+        public float Accuracy
+        {
+            get 
+            {
+                return (float)NumOfCorrects / (float)TotalAnswers;
+            }
+        }
+
+        public CCharStats(CChar cchar)
+        {
+            this.cchar = cchar;
+        }
+    }
+
+    public enum StatType
+    {
+        NumOfCorrects,
+        NumOfWrongs
+    }
+}