long double,long long,double,float,char,int所占字节大小

验证代码

#include<iostream>
#include<stdlib.h>
using namespace std;
int main(){
	long double a;
	long long b;
	double c;
	float d;	
	char g;	
	int f;
	cout<<"变量所占字节（1 Byte = 8 bit）"<<endl; 
	cout<<"long double:"<<sizeof(a)<<endl;
	cout<<"long long  :"<<sizeof(b)<<endl;
	cout<<"double     :"<<sizeof(c)<<endl;
	cout<<"float      :"<<sizeof(d)<<endl;
	cout<<"int        :"<<sizeof(f)<<endl;
	cout<<"char       :"<<sizeof(g)<<endl;
	return 0;
}