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16 lines
No EOL
511 B
C
16 lines
No EOL
511 B
C
#include <stdio.h>
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int main() {
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int a[3][4] = {{0,1,2,3}, {4, 5, 6, 7}, {8, 9, 10, 11}};
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int(*p)[4] = a;
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//一个指向数组的指针p，数组的类型为int[4]
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printf("%d\n", sizeof(*(p+1))); // 16 that is because 4 * 4 = 16
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/**
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* *(p+1)单独使用表示第一行数据，放在表达式里就代表第一行数据的首地址
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* *(p+1)+1 代表第一行数据的第1个元素的地址
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* *(*(p+1)+1) 代表第一行数据的第一个元素
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*/
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return 0;
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} |