每次strstr（）函数返回false。当我传递任何输入时，函数返回false

Question

我正在尝试搜索轨道数组中是否有任何轨道可用。当我给任何输入时，strstr()函数返回false。如果我使用else块，则每次执行其他块。

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

    // function to search the track with entered search string //
    void find_track(char search_for[]) {
        int i;
        for (i = 0; i < 5; i++) {
            /** this if condition is returning false every time */
            if (strstr(tracks[i], search_for)){
            printf("Track %i: '%s'\n", i, tracks[i]);
            }/**else{
                printf("some thing went wrong @ %i\n", i);
            }**/
        }
    }



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

输入：

gcc test.c -o test && test

搜索：with

预期结果：Track 2:'Dancing with a Dork'

请帮帮我。

Answer 1

fgets也会读取换行符。您需要先将其从search_for中删除，然后再将其传递给find_track。

请参阅Removing the newline from fgets。