c++个人学习备忘录

一阶段：c++学习代码保存

B站学习练习代码

2.1整型

#include 
using namespace std;
/*
short,int,long longlong
*/
int main2_1()
{
	short a = 1;
	cout << sizeof(a)<<sizeof(long);
	system("pause");
	return 0;
}

#2.2 sizeof关键字

#include 
using namespace std;

int main2_2()
{
	cout << sizeof(int)<<endl;
	cout<<sizeof(short)<<endl;
	cout<<sizeof(long)<<endl;
	cout<<sizeof(long long)<<endl;
	system("pause");
	return 0;
}