值是9,int a[ ][3]={1,2,3,4,5,6,7,8,9,10,11,12};是定义一个二维数组,他有3列 由后面的十二个元素可知它有4列.int*p=a;是定义一个实数指针,*(*(a+2)+2)就是指数组a[2][2所以是9.(下标从0开始算)]
int a[ ][3]={1,2,3,4,5,6,7,8,9,10,11,12};int*p=a;求 *(*(a+2)+
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