#include <stdio.h>
// 計(jì)算數(shù)據(jù)的異或校驗(yàn)碼
unsigned char calculate_xor_checksum(const unsigned char* data, size_t length) {
    unsigned char checksum = 0;
    for (size_t i = 0; i < length; i++) {
        checksum ^= data[i];
    }
    return checksum;
}
// 發(fā)送數(shù)據(jù)并附加異或校驗(yàn)碼
void send_data_with_xor_checksum(const unsigned char* data, size_t length) {
    // 計(jì)算異或校驗(yàn)碼
    unsigned char checksum = calculate_xor_checksum(data, length);
    // 發(fā)送數(shù)據(jù)
    printf("發(fā)送數(shù)據(jù)：");
    for (size_t i = 0; i < length; i++) {
        printf("%02X ", data[i]);
    }
    printf(" 異或校驗(yàn)碼：%02X\n", checksum);
}
int main() {
    unsigned char data[] = { 0x12, 0x34, 0x56, 0x78 };
    send_data_with_xor_checksum(data, sizeof(data));
    return 0;
}

#include <stdio.h>
// 驗(yàn)證數(shù)據(jù)的異或校驗(yàn)碼
int validate_xor_checksum(const unsigned char* data, size_t length, unsigned char checksum) {
    unsigned char calculated_checksum = calculate_xor_checksum(data, length);
    return (checksum == calculated_checksum);
}
// 接收數(shù)據(jù)并驗(yàn)證異或校驗(yàn)碼
void receive_data_with_xor_checksum(const unsigned char* data, size_t length, unsigned char checksum) {
    printf("接收數(shù)據(jù)：");
    for (size_t i = 0; i < length; i++) {
        printf("%02X ", data[i]);
    }
    // 驗(yàn)證異或校驗(yàn)碼
    if (validate_xor_checksum(data, length, checksum)) {
        printf(" 異或校驗(yàn)通過\n");
    } else {
        printf(" 異或校驗(yàn)失敗\n");
    }
}
int main() {
    unsigned char received_data[] = { 0x12, 0x34, 0x56, 0x78 };
    unsigned char received_checksum = 0xAB;
    receive_data_with_xor_checksum(received_data, sizeof(received_data), received_checksum);
    return 0;
}