比较两个二维数组是否相等

 用 CompareMem 对比内存即可.

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{对比静态数组}procedure TForm1.Button1Click(Sender: TObject);var  arr1: array[0..3] of AnsiChar;  arr2: array[0..3] of Byte;begin  arr1[0] := 'A'; arr1[1] := 'B'; arr1[2] := 'C'; arr1[3] := 'D';  arr2[0] := 65;  arr2[1] := 66;  arr2[2] := 67;  arr2[3] := 68;  if CompareMem(@arr1, @arr2, SizeOf(arr1)) then    ShowMessage('arr1 与 arr2 中的数据相同');end;{对比动态数组}procedure TForm1.Button2Click(Sender: TObject);var  arr1: array of AnsiChar;  arr2: array of Byte;begin  SetLength(arr1, 4);  SetLength(arr2, 4);  arr1[0] := 'A'; arr1[1] := 'B'; arr1[2] := 'C'; arr1[3] := 'D';  arr2[0] := 65;  arr2[1] := 66;  arr2[2] := 67;  arr2[3] := 68;  if CompareMem(arr1, arr2, SizeOf(arr1)) then    ShowMessage('arr1 与 arr2 中的数据相同');end;{多维数组也一样}procedure TForm1.Button3Click(Sender: TObject);var  arr1: array[0..1, 0..1] of AnsiChar;  arr2: array[0..1, 0..1] of Byte;begin  arr1[0,0] := 'A'; arr1[0,1] := 'B'; arr1[1,0] := 'C'; arr1[1,1] := 'D';  arr2[0,0] := 65;  arr2[0,1] := 66;  arr2[1,0] := 67;  arr2[1,1] := 68;  if CompareMem(@arr1, @arr2, SizeOf(arr1)) then    ShowMessage('arr1 与 arr2 中的数据相同');end;静态数组与动态数组的不同之处在于：动态数组为动态指针，运行时动态生成，而静态数组编译时生成。