---
# System prepended metadata

title: C語言題庫-015

---

# C語言題庫-015
程序哪裏有錯誤
```
wap( int* p1,int* p2 )
{
int * p;
*p = *p1;
*p1 = *p2;
*p2 = *p;
}
```
【標準答案】p 爲野指針