c - 创建房间的结构，然后将每个房间写入各自的唯一文件

Question

为了扩展标题，我正在使用结构创建一组房间，该函数本质上需要随机生成最多7个房间（共10个），而每次都生成起始和结束房间。然后，我尝试为每个房间结构生成一个文件并显示其PID，然后打开每个目录以写入或创建该文件。
因此，我正在生成这样的结构：

struct room
{
    int id;
    char* name;
    int numOutboundConnections;
    struct room* outboundConnections[6];
};

和

int main(int argc, char* argv[])
{
    struct room Room1;
    Room1.id = 0;
    Room1.name = calloc(16, sizeof(char));
    strcpy(Room1.name, "Forest");

然后，这是我尝试生成目录并在主目录中创建它们的尝试：

// Generate the "rooms" directory name
sprintf(dirname, "./browninz.room.%d", getpid());

// Generate the room names concatenated with the directory name
sprintf(dir0, "%s/Room1", dirname);
sprintf(dir1, "%s/Room2", dirname);
sprintf(dir2, "%s/Room3", dirname);
sprintf(dir3, "%s/Room4", dirname);
sprintf(dir4, "%s/Room5", dirname);
sprintf(dir5, "%s/Room6", dirname);
sprintf(dir6, "%s/Room7", dirname);


mkdir(dirname, 0777);

// Now opening the room files/directories to create or write them in the folder.
FILE *Room1 = fopen(dir0, "w+");
FILE *Room2 = fopen(dir1, "w+");
FILE *Room3 = fopen(dir2, "w+");
FILE *Room4 = fopen(dir3, "w+");
FILE *Room5 = fopen(dir4, "w+");
FILE *Room6 = fopen(dir5, "w+");
FILE *Room7 = fopen(dir6, "w+");

然后，这会导致我所有房间结构的错误：

In function ‘main’:
    browninz.buildrooms.c:102:11: error: conflicting types for ‘Room1’
         FILE *Room1 = fopen(dir0, "w+");
               ^

我将不胜感激，因为我对使用C语言进行编程还比较陌生，我似乎无法弄清楚。

Answer 1

您已经将Room1声明为struct room，不能将其重新声明为FILE *。

我仍然不确定您要完成的目标，但是也许将FILE *添加到房间结构中可能是您​​要的目标：

struct room
{
    int id;
    char* name;
    int numOutboundConnections;
    struct room* outboundConnections[6];
    FILE *file;
};
...
Room1.file = fopen( dir0, "w+" );

当然，您需要在完成操作后记住 fclose( Room1.file )。