Question

我想创建一个程序，告诉你你选择的两个城市之间的距离（有3个城市，你可以选择2个），我写了代码，但是在我输入city1和city2后它没有输出。我是初学者，我听说strcmp但是还有其他办法吗？这是代码：

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <math.h>



int main()
{
char city1[] = "Zurich";
char city2[] = "Vienna";
char city3[] = "Berlin";
char location[20];
char destination[20];

puts("Which city are you in at the moment?");
gets(location);
puts("Which city do you want to go to?");
gets(destination);

if(location == city1)
{
    if(destination == city2)
    {
        printf("Distance between %s and %s is 743km and it will take you 7 hours and 40 minutes to get there", city1, city2);
    }
    else
    {
        printf("Distance between %s and %s is 844km and it will take you 8 hours and 40 minutes to get there", city1, city3);
    }   

}
else if(location == city2)
{
    if(destination == city3)
    {
        printf("Distance between %s and %s is 640km and it will take you 7 hours and 15 minutes to get there", city2, city3 );
    }
    else
    {
        printf("Distance between %s and %s is 743km and it will take you 7 hours and 40 minutes to get there", city2, city1);   
    }



}





return 0;
}

Answer 1

location == city1正在比较指针地址，它们将不相等。

您需要使用!strcmp(location, city1)＆amp; c。代替。如果字符串 contents 相同，则strcmp返回0。

字符串比较失败

1 个答案: