C语言数组特性-取下标运算中的交换律----i[a] == a[i]
After the declaration and defination:int a[] = {1, 2, 3, 4, 5 };a + i equals i + a, they are pointers with the same value pointed to the array element a[i],so a[i] = i[a],(0 #include #include int m