c++中各个数据类型的大小

#include <iostream>

using namespace std;

int main()
{
cout<<"confirm those dataType's size in ram"<<endl;
cout<<"int :"<<sizeof(int)<<endl;
cout<<"short int :"<<sizeof(short int)<<endl;
cout<<"long int :"<<sizeof(long int)<<endl;
cout<<"float :"<<sizeof(float)<<endl;
cout<<"double :"<<sizeof(double)<<endl;
cout<<"char :"<<sizeof(char)<<endl;
cout<<"the end!"<<endl;
return 0;
}