Question

对于背景，我目前正在进行一项任务，以扫描悲惨世界（在.txt文件中给我）中的角色名称（其中的一个列表是在一个单独的{{{ 1}}文件）。提到一个字符时，将哪个字符和哪一行写入.txt文件。我的代码目前将角色名称记录到.txt中，并将来自悲惨世界（不同文件，然后是整本小说）的4行摘录记录到namesArr[66][20]中。

现在到了实际问题。在尝试检查某fourlinesArr[4][100]行是否在namesArr中时，fourlinesArr将始终返回false。如果我用单个字符数组替换strstr，那么它的工作正常。有没有办法让namesArr与多维数组一起正常工作，还是应该完全使用不同的函数？

以下全部代码：

strstr

返回：

//import statements
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void) {

//Read for Les-Mis-Names.txt
//copy and pasted fileIO.c, editing where required
const char *NAMES_FILE_PATH = "./Moodle Documents/Les-Mis-Names.txt"; // location of names file
int nameslineNum = 0;
char namesArr[66][20];

FILE *names = fopen(NAMES_FILE_PATH,  "r+" );       /* open for reading */
// This will take each row in the file and store it in namesArr.
if (names == NULL ){      /* check does names file exist etc */
    perror ("Error opening names file");
    nameslineNum = -1; /* use this as a file not found code */
} else {
    // fgets returns NULL when it gets to the end of the file
    while ( fgets(namesArr[nameslineNum], sizeof(namesArr[nameslineNum]), names ) != NULL ) {
        nameslineNum++;
    }
    fclose (names);
}
//end of fileIO.c code 

//Read for Les-Mis-4-lines
//copy and pasted fileIO.c, editing where required
const char *LES_MIS_4_LINES_FILE_PATH = "./Moodle Documents/Les-Mis-4-lines"; // location of Les-Mis-4-lines file
int fourlineslineNum = 0;
char fourlinesArr[4][100];

FILE *fourlines = fopen(LES_MIS_4_LINES_FILE_PATH,  "r+" );       /* open for reading */
// This will take each row in the file and store it in fourlinesArr.
if (fourlines == NULL ){      /* check does 4 lines file exist etc */
    perror ("Error opening 4 lines file");
    fourlineslineNum = -1; /* use this as a file not found code */
} else {
    // fgets returns NULL when it gets to the end of the file
    while ( fgets(fourlinesArr[fourlineslineNum], sizeof(fourlinesArr[fourlineslineNum]), fourlines ) != NULL ) {

        fourlineslineNum++;
    }
    fclose (fourlines);
}
//end of fileIO.c code


//testing
char name[20] = "Fabantou";
printf("%s\n", namesArr[62]);
printf("%s\n", fourlinesArr[0]);

if(strstr(fourlinesArr[0], namesArr[62]) != NULL) {
    printf("Success\n");
}
else {
    printf("Failure\n");
}

if(strstr(fourlinesArr[0], name) != NULL) {
    printf("Success\n");
}
else {
    printf("Failure\n");
}

return 0;
}

C中的strstr使用多维数组

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