C语言创建文件失败，大一做系统，求解决

Question

 #include <stdio.h>
#include <string.h>
#include <time.h>
void main()
{
    FILE *fp;
    char ch[50];
    char name[10] = "111";
    char data[5] = ".txt";
    ch[0] = '\0';
    data[4] = '\0';
    time_t timep;
    time(&timep);
    *(asctime(localtime(&timep)) + 24) = '\0';
    strcat(ch, asctime(localtime(&timep)));
    strcat(ch, data);
    fp = fopen(ch, "a");
    fclose(fp);
}

Answer 1

这哪知道在哪里出问题