which one of the following will declare a pointer to an interger _英语解答

which one of the following will declare a pointer to an interger at address 0x200 in memory?
A .int *x=0x200; B.int *x=&0x200; C.int *x=*0x200; D.int *x(0x200)

人气：409 ℃　时间：2020-05-22 08:23:43

解答

答案：C能解释一下吗？问题的意思是：声明一个指针变量，取值为地址0x200中的一个整数 int *x声明一个int*指针而int*x=*0x200相当于int*x=*(int*)0x200，即取地址0x200中的值并赋值给变量x