修复峰值搜索时，在某些情况下崩溃的问题

Avalonia/ShakerApp/Tools/Tools.cs

@@ -135,15 +135,14 @@ namespace ShakerApp.Tools
             }
         }
 
-        public unsafe static List<(int Index,T Value)> FindPeaks<T>(ref T value,uint len,bool isrisingedge = true) where T :unmanaged
+        public static List<(int Index,T Value)> FindPeaks<T>(ref T value,uint len,bool isrisingedge = true) where T :unmanaged
         {
             List<(int Index,T Value)> result = new List<(int Index,T Value)>();
             if (len <= 1) return result;
             int[] diff_v = new int[len - 1];
-            T* first = (T*)Unsafe.AsPointer(ref value);
             for(int i=0;i<len-1;i++)
             {
-               diff_v[i] = Comparer<T>.Default.Compare(first[i], first[i + 1]);
+               diff_v[i] = Comparer<T>.Default.Compare(Unsafe.Add(ref value,i),Unsafe.Add(ref value,i+1));
             }
             for (int i = diff_v.Length - 1; i >= 0; i--)
             {
@@ -158,7 +157,7 @@ namespace ShakerApp.Tools
             {
                 if (diff_v[i + 1] - diff_v[i] == (isrisingedge ?2: -2))
                 {
-                    result.Add((i + 1, first[i + 1]));
+                    result.Add((i + 1, Unsafe.Add(ref value,i+1)));
                 }
             }
             return result;