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|
| int main()
{
char str1[] = "1234";
cout << sizeof(str1) << endl; //5
char str2[6] = "1234";
cout << sizeof(str2) << endl; //6
int array1[] = {1,2,3,4};
cout << sizeof(array1) << endl; //16
int array2[6] = {1,2,3,4};
cout << sizeof(array2) << endl; //24
return 0;
}
|
掌握核心sizeof是所占内存的大小，或者说申请内存的大小。