数组名加取地址符
看了一下这里https://blog.****.net/wangkeyen/article/details/50650000
自己做了一下验证:
int main() {
int a[5] = { 5, 2, 3, 3, 4 };
cout << sizeof(a) << endl; // 20
cout << sizeof(*a) << endl; // 4
cout << sizeof(*&a) << endl; // 20
cout << a << endl; // 00EFF904
cout << &a << endl; // 00EFF904
cout << (a + 1) << endl; // 00EFF908
cout << (&a + 1) << endl; // 00EFF918
cout << *(a + 1) << endl; // 2
cout << *(&a + 1) << endl; // 00EFF918
vector<int> aa(a, a+5);
system("pause");
return 0;
}