def calculate_diagonal_sum(n): diagonal_sum = 0 matrix = [[0] * n for _ in range(n)] i = 1 for row in range(n): for col in range(n): matrix[row][col] = i i += 1 for i in range(n): diagonal_sum += matrix[i][i] for i in range(n): diagonal_sum += matrix[i][n-i-1] if n % 2 == 1: diagonal_sum -= matrix[n//2][n//2] return diagonal_sum n = 4 result = calculate_diagonal_sum(n) print("对角线之和是:", result)