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int
i = 10;
const
int
* p1 = &i;
//这里是底层的const,能改变p1,但是不能改变*p1
//*p1 = 200 错误
p1 = &i
//正确
int
*
const
p2 = &i;
//顶层const,能改变*p2,但不能改变p2
*p2 = 200;
p2 = &i
//错误
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本文转自神ge 51CTO博客，原文链接:http://blog.51cto.com/12218412/1867101
