在C中使用strstr

Question

该程序没有给出任何输出......如果输入匹配的字符串,函数find_track应返回该轨道.

#include<stdio.h>
#include<string.h>

char tracks[][80] = {
    "I left my heart in Harward Med School",
    "Newark, Newark - a wonderful town",
    "Dancing with a Dork",
    "From here to maternity",
    "The girl from Iwo Jima",
};

void find_track(char search_for[])
{
    int i;
    for(i = 0; i< 5 ; i++)
    {
        if(strstr(tracks[i],search_for))
        {
            printf("Track %i: '%s'\n",i,tracks[i]);
        }
    }
}

int main()
{
    char search_for[80];
    printf("Search for : ");
    fgets(search_for,80,stdin);
    find_track(search_for);
    return 0;
}

Answer 1

fgets()读取您输入的行,正如文档所说,这包括您输入到程序的任何换行符.因此,您输入"with"并按Enter键,您的程序将获得字符串"with \n".

所以摆脱那个换行符:

if (fgets(search_for,80,stdin)  && search_for[0]) [
    search_for[strlen(search_for) - 1] = 0;
    find_track(search_for);
}