我的程序用於生成可接受的密碼,除了輸入提示之外,它不顯示任何輸出,它允許我輸入密碼,但程序立即結束。我在調試器上沒有發現錯誤或警告。想知道是否有人可以給我一些意見。命令提示符中沒有輸出
#include "stdafx.h"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
int main()
{
char password[15] = {'\0'};
char search[15] = { '\0' };
int a, b, c, d, e;
char punct[] = { '!','@','#','$','%','^','&','*','?','_', '\0' };
printf("Enter your test password: \n");
fgets(password, 15, stdin);
a = strnlen(password, 15);//judges length of search between the numbers 2 and 15
b = strncmp(password, punct, 10);
c = isalpha(strnlen(password,15));
d = isdigit(strnlen(password, 15));
e = a + b + c + d;
if (a < 2 || a>15) {
printf("Must have exactly 2-15 characters.\n");
if (strncmp(password, punct, 10) == false) {//must have one of the characters included in password
printf("Must have character punctutation\n");
}
if (isdigit(strnlen(password, 15)) == false) {
printf("Must consist of at least one number 0-9.\n");
}
if (isalpha(strnlen(password, 15)) == false) {
printf("Must consist of at least one letter a-z\n");
}
else {
printf("You have inputted a legal password!\n");
}
}
return 0;
}
您的輸入長度是> = 2還是<= 15? – Les
你爲什麼要在一段長度上做isalpha?和isdigit? (無關) – Les
我想如果它運行與isalpha或數字數組,它會給我一個int,我反過來可以用於一個真正的虛假陳述 – Chris