单选题有以下程序:#include void f(int *p);main(){ int a[5]={1,2,3,4,5},*r=a; f(r); printf("%d",*r);}void f(int *p){ p=p+3; printf("%d,",*p);}程序运行后的输出结果是(  )。A1,4B4,4C3,1D4,1

单选题
有以下程序:#include void f(int *p);main(){ int a[5]={1,2,3,4,5},*r=a; f(r); printf("%d",*r);}void f(int *p){ p=p+3; printf("%d,",*p);}程序运行后的输出结果是(  )。
A

1,4

B

4,4

C

3,1

D

4,1


参考解析

解析:
在调用f函数时,形参p通过传递参数指向了数组a的起始地址,执行语句“p=p+3;”后指向了a[3]的地址,所以输出4;主函数中,指针r仍指向数组a的首地址,所以输出1。答案选择D选项。

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