多选题

以下代码段有问题的是()

Question

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

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

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

D. 选项全部正确