未處理的異常

Question

我在Visual Studio 2013寫了下面的C程序：

#include <stdio.h> 

int main(){ 
    int number; 
    int fibonacci(int number); 

    printf("please enter number\n"); 
    scanf_s("%d", &number); 

    printf(fibonacci(number)); 
    return 0; 
} 

int fibonacci(number){ 
    if (number == 1 || number == 0){ 
    return number; 
    } 
    else{ 
    return fibonacci(number - 1) + fibonacci(number - 2); 
    } 
} 

它給我這個錯誤：

Unhandled exception at 0x5867F365 (msvcr120d.dll) in Project7.exe: 0xC0000005: Access violation reading location 0x00000002.

我覺得這是對廢棄一個空指針。我如何解決它？

Answer 1

printf(fibonacci(number)); 

應該

printf("%d", fibonacci(number)); 

甚至更​​好

int result = fibonacci(number); 
printf("%d", result);