cpp: data type

 

#include<iostream>
#include<stdio.h>
#include<string.h>  //显示中文，需要引用
using namespace std;

void test()
{

	int i = 10;
	
	for (int j = 0; j <= 3; j++)
		cout << j + i << endl;
	cout << "geovindu" << endl;
	


}

/*
 数据类型占用内存空间

*/
void dataTypeSize()
{
	short sa = 10;
	int sb = 90;
	long sc = 800823232;
	string sd = "涂聚文（Geovin Du)";
	char se; //字符串不能多个
	se = 'g';
	//char* a[]

	long sf = 0.84343;
	long long sl = 83434343;
	double sdo = 243;
	float sff = 243.5;	
	cout << "short数据类型变量sa占用内存空间" <<sizeof(sa) << endl;
	cout << "int数据类型变量sb占用内存空间" << sizeof(sb) << endl;
	cout << "long数据类型变量sc占用内存空间" << sizeof(sc) << endl;
	cout << "string数据类型变量sc占用内存空间" << sizeof(sd) << endl;
	cout << "long数据类型变量sc占用内存空间" << sizeof(sf) << endl;
	cout << "long long数据类型变量sc占用内存空间" << sizeof(sl) << endl;
	cout << "double数据类型变量sc占用内存空间" << sizeof(sdo) << endl;
	cout << "float数据类型变量sc占用内存空间" << sizeof(sff) << endl;
	cout << "char数据类型占用内存空间" << sizeof(char) << endl;
	cout << "bool数据类型占用内存空间" << sizeof(bool) << endl;
	

}

/*

*/
void intput()
{
	string a;
	cout << "请输入你的名字：" << endl;
	cin >> a;
	cout << "你输入的名字是：" << a << endl;
}

/*
显示五星列行排列
*/
void displayFiveStars()
{

	for (int i = 1; i < 5; i++)
	{
		for (int j = 1; j < 6; j++)
		{
			cout << "\t*";
		}
		cout << endl;
	}


}

/*
输入参数显示五星列行排列
*/
void displayFiveStars(int row, int column)
{

	for (int i = 1; i < row; i++)
	{
		for (int j = 1; j < column; j++)
		{
			cout << "\t*";
		}
		cout << endl;
	}
}
/*
ASCLL
*/
void displayASCII(char ascii[])
{

	//char ascii[] = "abcd";
	int lengf = sizeof(ascii);
	for(int i=0;i<lengf;i++)
	{
		cout << int(ascii[i]) << endl;
	}

}


/*
 运算符	
*/
void dipslayOperate(long a, long b)
{
	if (b > 0)
	{
		cout << "a+b=" << a + b << endl;
		cout << "a-b=" << a - b << endl;
		cout << "a*b=" << a * b << endl;
		cout << "a/b=" <<a /b << endl;
		cout << "a%b=" << a % b << endl;
	}
	else
	{
		cout << "不能为零" << endl;
	}

}
/**
* 
* 三目运算符
*/
void TrinocularOperator(int a,int b)
{
	int c = a < b ? a : b;
	cout << "c=" << c << endl;
}

/*
考试成绩判断
*/
void IsPassExamination(long exam)
{
	if (exam > 100)
	{
		cout << "输入的分数有误！" << endl;
	}
	else if (exam >= 80)
	{
		cout <<"你的【"<<exam<< "】分考试成绩优秀" << endl;
	}
	else if (exam >= 60)
	{
		cout << "你的【" << exam << "】分考试成绩极格" << endl;
	}
	else
	{
		cout << "你的【" << exam << "】分考试成绩不及格" << endl;
	}


}



#define day 7 //宏常量，定义以后，左不能修改 不加分号

int main()
{

	for (int i = 0; i < 10; i++)
	{
		long exam = 0;
		char yes = 'Y';
		cout << "输入你的考试成绩分数：" << endl;
		cin >> exam;
		IsPassExamination(exam);
		cout << "是否继续输入(y/n)?" << endl;
		cin >> yes;
		if (yes == 'N' || yes == 'n')
		{
			break;
		}
	}




	//显示星号
	//displayFiveStars();

	//displayFiveStars(8,8);
	//char asciid[]={ 'A','b','c','D' };
	//displayASCII(asciid);

	//
	//dipslayOperate(12, 3);

	short sa = 10;
	int sb = 90;
	long sc = 800823232;
	string sd = "涂聚文（Geovin Du)";
	char se; //字符串不能多个
	se='g';
	//char* a[]
	long sf = 0.84343;
	long long sl = 83434343;
	double sdo = 243;
	float sff = 243.5;
	char dustr[] = "geovindu";
	char chinses[] = "中国人";
	cout << chinses[2] << endl;
	dataTypeSize();
	cout <<"char"<< int(se) << endl;
	bool isok = true;
	cout << "逻辑：" << isok << endl;

	test();
	string du = "涂聚文（Geovin Du)";
	cout << "helo world!" << endl;
	cout <<"一周共有："<<day<<"天"<<endl;
	cout << du << endl;
	const int month = 12; //常量
	cout <<"一年有多少个月："<< month << endl;
	system("pause");
	return 0;


}

　

vs2022 python 输出中文乱码，python程序文件的文件编码的原因产生的。而PyCharm 2022.3.2 没有此问题。