c++sizeof语句

#include "iostream"

using namespace std;

int main() {
    cout << "sizeof(int)" << sizeof(int) << endl;
    cout << "sizeof(float)" << sizeof(float) << endl;
    cout << "sizeof(double)" << sizeof(double) << endl;
    cout << "sizeof(char)" << sizeof(char) << endl;
    cout << "sizeof(bool)" << sizeof(bool) << endl;
    
}

sizeof(int)4
sizeof(float)4
sizeof(double)8
sizeof(char)1
sizeof(bool)1