c++基本數據類型

#include<iostream>
#include<climits>
using namespace std;
//c plus plus
/* 內置整型 unsigned long ,long,unsigned int,int,unsigned short,short,char,unsigned char,signed char,bool cpp 11新增整型 unsigned long long,long long 內置浮點類型： float ,double, long double */
int main(void) {
	cout << sizeof(int)<<"\n";
	const int number = 123;
	cout << number << endl;
	cout << ULLONG_MAX << endl;
	return 0;
}