例题1

最新推荐文章于 2024-08-03 08:49:30 发布

原创最新推荐文章于 2024-08-03 08:49:30 发布 · 492 阅读

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本文通过一个简单的C++程序展示了不同基本数据类型所占用的字节数，包括整型、长整型、短整型、浮点型、双精度浮点型和字符型。

#include <iostream>
using namespace std;
int main()
{
	cout<<"number of bytes in int is:"<<sizeof(int)<<endl;
	cout<<"number of bytes in long int is:"<<sizeof(long)<<endl;
	cout<<"number of bytes in short int is:"<<sizeof(short int)<<endl;
	cout<<"number of bytes in long double is:"<<sizeof(long double)<<endl;
	cout<<"number of bytes in float is:"<<sizeof(float)<<endl;
	cout<<"number of bytes in char is:"<<sizeof(char)<<endl;
	return 0;
}

结果是

number of bytes in int is:4
number of bytes in long int is:4
number of bytes in short int is:2
number of bytes in long double is:8
number of bytes in float is:4
number of bytes in char is:1
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