不含字母的矩阵元素赋值的C程序

#include <stdio.h>

void assignMatrix(int matrix[3][3], int value) {
    int i, j;
    for (i = 0; i < 3; i++) {
        for (j = 0; j < 3; j++) {
            if ((matrix[i][j] >= 'A' && matrix[i][j] <= 'Z') || (matrix[i][j] >= 'a' && matrix[i][j] <= 'z')) {
                continue; // Skip if the element is a letter
            }
            matrix[i][j] = value; // Assign the value to the element
        }
    }
}

int main() {
    int matrix[3][3] = {{1, 'A', 3}, {'B', 5, 'C'}, {7, 8, 9}};
    int value = 0;

    printf("Original Matrix:\n");
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }

    assignMatrix(matrix, value);

    printf("\nMatrix after assigning non-letter elements to %d:\n", value);
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }

    return 0;
}

Original Matrix:
1 65 3
66 5 67
7 8 9

Matrix after assigning non-letter elements to 0:
1 0 3
0 5 0
7 8 9