C++的数据类型--新手入门笔记

最新推荐文章于 2024-04-30 22:40:34 发布

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#c++入门学习

本文通过C++程序展示了不同数据类型的大小（以字节为单位），包括整数类型（如int, short int, long int）、浮点数类型（如float, double, long double）以及布尔类型。有助于理解内存中各种数据类型的存储方式。

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C++的数据类型

/*
data:        2017/06/28
environment: codeBlocks16.01
author:      joker
function:    output the size of different data_type
*/

#include <iostream>

using namespace std;

int main()
{
    cout << "type" << "\t\t" << "size(Byte)"<< endl;
    cout << endl;
    for(int i=1;i <= 28;i++) {cout << '-' ;} cout << endl;

    cout << "基本类型" << endl;
    cout << "int " << "\t\t" << sizeof(int)<< endl;
    cout << "short int " << "\t" << sizeof(short int)<< endl;
    cout << "long int " << "\t" << sizeof(long int)<< endl;
    cout << "float " << "\t\t" << sizeof(float)<< endl;
    cout << "double " << "\t\t" << sizeof(double)<< endl;
    cout << "long double " << "\t" << sizeof(long double)<< endl;
    cout << "bool " << "\t\t" << sizeof(bool)<< endl;
    for(int i=1;i <= 28;i++) {cout << '-' ;} cout << endl;

    cout << "派生类型" << endl;
    cout << endl;
    cout << "待补充" <<endl;
    for(int i=1;i <= 28;i++) {cout << '-' ;} cout << endl;
    cout << "待补充" <<endl;
    return 0;
}