int a = 10;
int* p1 = &a;
int* p2 = p1;
p1 = NULL;
*p2 = 0;Different pointers point to the same area, when one of the pointers is killed, the thing pointed to by the other pointer will also disappear
Different pointers point to the same area
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Origin blog.csdn.net/cyy1104/article/details/130871725
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