c语言编程怎么弄车牌号

时间:2025-01-28 22:41:13 网络游戏

在C语言中生成车牌号可以通过以下几种方法:

方法一:随机生成车牌号

你可以使用随机数生成器来创建车牌号。以下是一个示例代码:

```c

include

include

include

void main() {

char id = {0};

char arr = {0,1,2,3,4,5,6,7,8,9, 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};

srand((unsigned)time(NULL));

for (int i = 0; i < 5; i++) {

int a = rand() % 36;

if ((i > 0 && id[i - 1] == id[i - 2]) || (id[i - 1] == '8' || id[i - 1] == '6')) {

while (id[i - 1] == a) {

a = rand() % 36;

}

}

id[i] = arr[a];

}

printf("生成的车牌号为: %s\n", id);

}

```

方法二:从用户输入获取车牌号

你可以编写一个程序,提示用户输入车牌号,然后筛选出符合特定格式的车牌号。以下是一个示例代码:

```c

include

int main() {

char car_number;

char car_number_filter;

int i, j;

printf("请输入车牌号: ");

scanf("%s", car_number);

for (i = 0, j = 0; i < 20 && car_number[i] != '\0'; i++) {

if (car_number[i] >= 'A' && car_number[i] <= 'Z') {

car_number_filter[j++] = car_number[i];

}

}

car_number_filter[j] = '\0';

printf("筛选后的车牌号为: %s\n", car_number_filter);

return 0;

}

```

方法三:从文件中读取车牌号

如果你有一个包含车牌号的文件,可以使用文件读取函数来读取车牌号并存储到数组中。以下是一个示例代码:

```c

include

include

define MAX_PLATE_NUM 100

define MAX_PLATE_LEN 10

int main() {

FILE *fp;

char plate_num[MAX_PLATE_NUM][MAX_PLATE_LEN];

int i = 0;

fp = fopen("data.txt", "r");

if (fp == NULL) {

perror("File not found");

exit(EXIT_FAILURE);

}

while (fscanf(fp, "%s", plate_num[i]) == 1) {

i++;

}

fclose(fp);

return 0;

}

```

方法四:验证车牌号格式

你还可以编写一个函数来验证车牌号的格式是否正确。以下是一个示例代码: