你好,请用c语言帮我写一段代码,int validate_card_number(char* card_number);要求完成在已存在的card_number进行查找,三次失败后退出
时间: 2024-05-29 19:08:27 浏览: 15
Sure, I can help you with that! Here's the code:
int validate_card_number(char* card_number) {
int attempts = 0;
while(attempts < 3) {
// Search for the given card number
// If found, return 1 to indicate validation success
if(search_for_card_number(card_number)) {
return 1;
}
// Otherwise, increment the number of attempts
attempts++;
}
// If we've reached this point, validation has failed
return 0;
}
Note that I didn't include the search_for_card_number function because that will depend on how you are storing and accessing the card numbers. Also, keep in mind that this code will only return either 1 (success) or 0 (failure). If you need more detailed information on why validation failed, you may need to modify the code accordingly.
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