int main()
{
int i,j,k;
i=1;j=2;k=3;
int *p =&k;
*(p-1)=0;
printf("%d%d%d",i,j,k);
getch();
}
产出为1 2。
int main()
{
int i,j,k;
i=1;j=2;k=3;
int *p =&k;
*(p-1)=0;
printf("%d%d%d",i,j,k);
getch();
}
产出为1 2。
你的方案显示出不明确的行为,你重新做的点算术是无效的。
你们只能对实际上属于阵列的点人进行点距测量,而增加或减小的结果仍然必须放在阵列内(或者说,如果你无意放弃的话,那么,其最终目标就应该放在前面)。
因此,汇编者可以产生其认为与该守则一样的任何法典。
不允许提及<代码>p-1。 在指定后<代码>和 办公室;k 这对你来说是一个无效的点,使用该点的行为没有界定。
只有当你的平线点击了引起这种错误的东西时,例如一些受保护的记忆或后来在某种计算(0)中成为分裂者的地点时,才会发生错误。
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