<pre>void func1(char *e){
  char *p1;
  p1=malloc(100);
  sprintf(p1,error:"%s'.",e);
  local_log(p1);
  }
</pre>

<pre>
int func2(char *filename)
  {
    FILE *fp;
    int key;
    fp=fopen(filename,"r");
    fscanf(fp,"%d",&key);
    return key;
   }
</pre>

<pre>
void func3(char *info){
  char *p,*pp;
  p=malloc(100);
  pp=p;
  free(p);
  sprintf(pp,*info:"%s'.",info);
  free(pp);
  }
</pre>

选项全部正确