用C怎样从一个文本文件中读取数据

#include

int main(void)
{
char tmp[1024];
char myarray[5][20];
int i;
char *bak=tmp;

FILE *fp=fopen("a.txt","rt");

if( !fp)
{
printf("can't open file ,exiting ...\n");
exit(1);
}

while( fgets(bak =tmp,1023,fp) )
{
while( *bak)
{
  if( *bak == ',')
    {*bak = ' ';}
    bak ++;
  }

  sscanf(tmp,"%s %s %s %s %s\n",myarray[0],myarray[1],myarray[2],myarray[3],myarray[4]);


for(i = 0 ; i < 5 ; i++)
  { printf("%s ", myarray + i); }
  putchar('\n');
 
}
fclose(fp);
return 0;
}


假如
a.txt 的内容是：
wer,xs,23,114,yuttr
xxx,bny,12,56,ttyu

则输出：
wer xs 23 114 yuttr
xxx bny 12 56 ttyu