指针目标

 1 #include<stdio.h>
 2 int main()
 3 {
 4  int a = 20;
 5  int b = 30;
 6  const int *p = &a;
 7  printf("*p = %d
",*p); //20
 8 
 9 a= 200;
10 printf("*p = %d
",*p);//20 
11  
12 p= &b;
13 //*p = 300;
14 printf("*p = %d
",*p);
15 return 0;
16  
17 }
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原文地址：https://www.cnblogs.com/renchong/p/5520621.html