指针*p,p,&p等辨别

 #include<iostream>
 #include<iomanip>
 #include<cmath>
 using namespace std;
 int main()
 {
    int *p,i=;
    p=&i;
    cout<<"*p: "<<*p<<endl<<"&p: "<<&p<<endl<<"p:  "<<p<<endl<<"i:  "<<&i<<endl;
    cout<<"*(&p):   "<<*(&p)<<endl<<"**(&p):  "<<**(&p);
   return ;
 }
 /*
 结果：
 *p: 1
 &p: 0x6dfeec
 p:  0x6dfee8
 i:  0x6dfee8
 *(&p):   0x6dfee8
 **(&p):  1
 */