cpp: pointer
// ConsoleStructSimpleApp.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//
#include <iostream>
#include <fstream>//文件操作
#include <sstream>//int转string
#include <iomanip>//cout格式化输出 setw()
#include <stdlib.h>
#include "GeovinDu.h"
using namespace std;
using namespace DuStructSimple;
//#pragma pack(2)
/// <summary>
///
/// </summary>
enum weekdayname
{
/// <summary>
///
/// </summary>
SUN=1,
/// <summary>
///
/// </summary>
MON=2,
/// <summary>
///
/// </summary>
TUE=3,
/// <summary>
///
/// </summary>
WED=4,
/// <summary>
///
/// </summary>
THU=5,
/// <summary>
///
/// </summary>
FRI=6,
/// <summary>
///
/// </summary>
SAT=7
};
/// <summary>
///
/// </summary>
enum color
{
red = 5,
blue,
green
};
union person
{
int age;
char name[256];
char sex[2];
};
union person2
{
int age;
char name;
char sex;
}du;
void func(int** pp)
{
*pp= new int(3);
//*pp = 40;
cout << "pp=" << pp << ",*pp=" << *pp <<",**pp=" << **pp<< endl;
}
void func2(int* pp)
{
*pp = 3;
cout << "pp2=" << pp << ",*pp2=" << *pp << endl;
}
int main()
{
int* dup=0;
func(&dup);
cout << "p==" << dup << ",*p==" << *dup << endl;
//2
cout << "**************2*************" << endl;
int dup2 = 1;
func2(&dup2);
cout << "p2==" << dup << ",&p2==" << &dup << endl;
int a = 10;
cout << "&a=" << &a << endl;
int* p = &a;
cout << "p=" << p <<",&p="<<&p<<",*p="<<*p << endl;
int** j = &p;
cout << "j=" << j << ",&j=" << &j << endl;
cout << "*j=" << *j << endl;
cout<<",**j="<<**j<< endl;
//person per;
//per.age = 30;
////per.name = "g";
////per.sex = "m";
//cout << "person内存：" << sizeof(person) << endl;
//cout << "person2 内存：" << sizeof(person2) << endl;
//cout << "person sex内存 " << sizeof(per.sex) << endl;
//cout << "person2 sex内存 " << sizeof(du.sex) << endl;
////地址相同：
//cout << "per.name=" << &per.name << endl;
//cout << "per.age=" << &per.age << endl;
//cout << "per=" << &per << endl;
// std::cout << "Hello World!涂聚文 Geovin Du\n";
//int num;
//cout << "输入5-7(红，蓝，绿）:" << endl;
//cin >> num;
//switch (num)
//{
//case 5:
// cout << "红色" << endl;
// break;
//case 6:
// cout << "蓝色" << endl;
// break;
//case 7:
// cout << "绿色" << endl;
// break;
//default:
// cout << "错误！" << endl;
// break;
//}
//cout << "枚举类型：" << endl;
//cout << SUN <<","<<MON<<","<<TUE<<"," << WED <<","<<THU<<","<<FRI<<","<<SAT<< endl;
//enum weekdayname day;
//day = FRI;
//cout << day << endl;
//GeovinDu geovin;
//
//geovin.DisplayStructSize();
//geovin.displayStudent();
// 无用
//geovin.dispalyStructDemo();
//
//
//geovin.dsipalyFuntion();
//geovin.dipslayStructCustomer();
system("pause");
return 0;
}
// 运行程序: Ctrl + F5 或调试 >“开始执行(不调试)”菜单
// 调试程序: F5 或调试 >“开始调试”菜单
// 入门使用技巧:
// 1. 使用解决方案资源管理器窗口添加/管理文件
// 2. 使用团队资源管理器窗口连接到源代码管理
// 3. 使用输出窗口查看生成输出和其他消息
// 4. 使用错误列表窗口查看错误
// 5. 转到“项目”>“添加新项”以创建新的代码文件，或转到“项目”>“添加现有项”以将现有代码文件添加到项目
// 6. 将来，若要再次打开此项目，请转到“文件”>“打开”>“项目”并选择 .sln 文件
// ConsoleStructSimpleApp.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//
#include <iostream>
#include <fstream>//文件操作
#include <sstream>//int转string
#include <iomanip>//cout格式化输出 setw()
#include <stdlib.h>
#include "GeovinDu.h"
using namespace std;
using namespace DuStructSimple;
//#pragma pack(2)
/// <summary>
///
/// </summary>
enum weekdayname
{
/// <summary>
///
/// </summary>
SUN=1,
/// <summary>
///
/// </summary>
MON=2,
/// <summary>
///
/// </summary>
TUE=3,
/// <summary>
///
/// </summary>
WED=4,
/// <summary>
///
/// </summary>
THU=5,
/// <summary>
///
/// </summary>
FRI=6,
/// <summary>
///
/// </summary>
SAT=7
};
/// <summary>
///
/// </summary>
enum color
{
red = 5,
blue,
green
};
union person
{
int age;
char name[256];
char sex[2];
};
union person2
{
int age;
char name;
char sex;
}du;
/// <summary>
/// 二级指针
/// </summary>
/// <param name="pp">形参</param>
void func(int** pp)
{
int* p = 0;
int** dup = &p;
*dup = new int(3);
cout << "&pp=" << &pp << endl;
cout << "*pp=" << *pp << endl;
cout << "**pp=" << **pp << endl;
*pp= new int(3);
//*pp = 40;
cout << "pp=" << pp << ",*pp=" << *pp <<",**pp=" << **pp<<",&pp="<<&pp<< endl;
//*pp指向p, pp指向new, &pp指向自已
}
/// <summary>
///
/// </summary>
/// <param name="pp"></param>
void func2(int* pp)
{
*pp = 3;
cout << "pp2=" << pp << ",*pp2=" << *pp << endl;
}
int main()
{
//int* dup=0;
//func(&dup);
//cout << "p==" << dup << ",*p==" << *dup << endl;
//2
cout << "**************2*************" << endl;
int dup2 = 10;
cout << "dup2=" << &dup2 << endl;
int* dupp = &dup2;
cout << "dupp=" << &dupp << endl;
func(&dupp);
cout << "p2==" << dupp << ",&p2==" << &dupp <<",*dupp="<<*dupp << endl;
//3
cout << "3***********" << endl;
int kk = 20;
int* dukk = &kk;
func2(dukk);
cout << "4************" << endl;
int a = 10;
cout << "&a=" << &a << endl;
int* p = &a;
cout << "p=" << p <<",&p="<<&p<<",*p="<<*p << endl;
int** j = &p;
cout << "j=" << j << ",&j=" << &j << endl;
cout << "*j=" << *j << endl;
cout<<",**j="<<**j<< endl;
//person per;
//per.age = 30;
////per.name = "g";
////per.sex = "m";
//cout << "person内存：" << sizeof(person) << endl;
//cout << "person2 内存：" << sizeof(person2) << endl;
//cout << "person sex内存 " << sizeof(per.sex) << endl;
//cout << "person2 sex内存 " << sizeof(du.sex) << endl;
////地址相同：
//cout << "per.name=" << &per.name << endl;
//cout << "per.age=" << &per.age << endl;
//cout << "per=" << &per << endl;
// std::cout << "Hello World!涂聚文 Geovin Du\n";
//int num;
//cout << "输入5-7(红，蓝，绿）:" << endl;
//cin >> num;
//switch (num)
//{
//case 5:
// cout << "红色" << endl;
// break;
//case 6:
// cout << "蓝色" << endl;
// break;
//case 7:
// cout << "绿色" << endl;
// break;
//default:
// cout << "错误！" << endl;
// break;
//}
//cout << "枚举类型：" << endl;
//cout << SUN <<","<<MON<<","<<TUE<<"," << WED <<","<<THU<<","<<FRI<<","<<SAT<< endl;
//enum weekdayname day;
//day = FRI;
//cout << day << endl;
//GeovinDu geovin;
//
//geovin.DisplayStructSize();
//geovin.displayStudent();
// 无用
//geovin.dispalyStructDemo();
//
//
//geovin.dsipalyFuntion();
//geovin.dipslayStructCustomer();
system("pause");
return 0;
}
// 运行程序: Ctrl + F5 或调试 >“开始执行(不调试)”菜单
// 调试程序: F5 或调试 >“开始调试”菜单
// 入门使用技巧:
// 1. 使用解决方案资源管理器窗口添加/管理文件
// 2. 使用团队资源管理器窗口连接到源代码管理
// 3. 使用输出窗口查看生成输出和其他消息
// 4. 使用错误列表窗口查看错误
// 5. 转到“项目”>“添加新项”以创建新的代码文件，或转到“项目”>“添加现有项”以将现有代码文件添加到项目
// 6. 将来，若要再次打开此项目，请转到“文件”>“打开”>“项目”并选择 .sln 文件
/// <summary>
/// 指针
/// </summary>
/// <param name="pp">形参</param>
void func3(int* pp)
{
int* p = 0;
int** dup = &p;
*dup = new int(3);
cout << "&pp=" << &pp << endl;
cout << "*pp=" << *pp << endl;
//cout << "**pp=" << **pp << endl;
pp = new int(3);
//*pp = new int(3);
//*pp = 40;
//cout << "pp=" << pp << ",*pp=" << *pp << ",**pp=" << **pp << ",&pp=" << &pp << endl;
cout << "pp=" << pp << ",*pp=" << *pp << ",&pp=" << &pp << endl;
//*pp指向p, pp指向new, &pp指向自已
}
/// <summary>
/// 二级指针
/// </summary>
/// <param name="pp">形参</param>
int func(int** pp)
{
int* p = 0;
int** dup = &p;
*dup = new int(3);
cout << "&pp=" << &pp << endl;
cout << "*pp=" << *pp << endl;
cout << "**pp=" << **pp << endl;
*pp= new int(3);
//*pp = 40;
cout << "pp=" << pp << ",*pp=" << *pp <<",**pp=" << **pp<<",&pp="<<&pp<< endl;
//*pp指向p, pp指向new, &pp指向自已
return **pp;
}
/// <summary>
/// 指针
/// </summary>
/// <param name="pp">形参</param>
int func3(int* pp)
{
int* p = 0;
int** dup = &p;
*dup = new int(3);
cout << "&pp=" << &pp << endl;
cout << "*pp=" << *pp << endl;
//cout << "**pp=" << **pp << endl;
pp = new int(3);
//*pp = new int(3);
//*pp = 40;
//cout << "pp=" << pp << ",*pp=" << *pp << ",**pp=" << **pp << ",&pp=" << &pp << endl;
cout << "pp=" << pp << ",*pp=" << *pp << ",&pp=" << &pp << endl;
//*pp指向p, pp指向new, &pp指向自已
return *pp;
}
/// <summary>
///
/// </summary>
/// <param name="pp"></param>
int func2(int* pp)
{
*pp = 3;
cout << "pp2=" << pp << ",*pp2=" << *pp << endl;
return *pp;
}
// ManageStudent.h: 此文件包含 "ManageStudent" 类。当作视图式结构体 策略模式 Strategy Pattern C++ 14
// 2023年5月1日 涂聚文 Geovin Du Visual Studio 2022 edit.
#pragma once
#ifndef HEROSIMPLE_H
#define HEROSIMPLE_H
#include<cstring>
#include<stdbool.h>
#include<stdlib.h>
#include<iostream>
#include<malloc.h>
#include<cmath>
#include <iostream>
#include <sstream>
#include <vector>
#include <algorithm>
#include <array>
#include <functional>
#include <list>
#include <string>
#include <string.h>
using namespace std;
namespace DuStructSimple
{
/// <summary>
///
/// </summary>
struct hero
{
/// <summary>
///
/// </summary>
string name;
/// <summary>
///
/// </summary>
int age;
/// <summary>
///
/// </summary>
float HealthPoint;
/// <summary>
///
/// </summary>
long property;
/// <summary>
///
/// </summary>
string sex;
/// <summary>
///
/// </summary>
/// <param name="Obj"></param>
/// <returns></returns>
bool operator<(const hero& Obj) const
{
return HealthPoint < Obj.HealthPoint;
}
};
/// <summary>
///
/// </summary>
/// <param name="arr"></param>
/// <param name="len"></param>
void bubbleSort(hero arr[], int len)
{
for (int i = 0; i < len - 1; i++)
{
for (int j = 0; j < len - 1 - i; j++)
{
if (arr[j].age > arr[j + 1].age)
{
hero temp = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = temp;
}
}
}
}
/// <summary>
///
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
bool compareTwohero(hero a, hero b)
{
// If total marks are not same then
// returns true for higher total
if (a.HealthPoint != b.HealthPoint)
return a.HealthPoint > b.HealthPoint;
// If marks in Maths are same then
// returns true for higher marks
if (a.property != b.property)
return a.property > b.property;
return (a.age > b.age);
}
}
#endif
/// <summary>
/// 英雄显示示例
/// </summary>
void GeovinDu::displayHero()
{
cout << "英雄年龄排序：" << endl;
hero rosdu[5] = { {"赵二",23,100,50,"男"},{"李三",28,105,70,"男"},{"王四",26,120,40,"男"},{"刘英",21,90,80,"女"},{"何五",20,130,78,"男"} };
vector<hero> ros = { {"赵二",23,100,50,"男"},{"李三",28,105,70,"男"},{"王四",26,120,40,"男"},{"刘英",21,90,80,"女"},{"何五",20,130,78,"男"} };
bubbleSort(rosdu, 5);
cout << "\t姓名" << "\t生命值" << "\t财点" << "\t年龄" << "\t性别" << endl;
for (auto du : rosdu)
{
cout << "\t" << du.name << "\t" << du.HealthPoint << "\t" << du.property << "\t" << du.age<<"\t"<<du.sex << endl;
}
cout << "英雄生命点排序：" << endl;
sort(ros.begin(), ros.end(), compareTwohero);
cout << "\t姓名" << "\t生命值" << "\t财点" << "\t年龄" << "\t性别" << endl;
for (auto du : ros)
{
cout << "\t" << du.name << "\t" << du.HealthPoint << "\t" << du.property << "\t" << du.age << "\t" << du.sex << endl;
}
cout << "英雄财点排序：" << endl;
// Using lambda expressions in C++11
sort(ros.begin(), ros.end(), [](const hero& lhs, const hero& rhs) {
return lhs.property < rhs.property;
});;
cout << "\t姓名" << "\t生命值" << "\t财点" << "\t年龄" << "\t性别" << endl;
for (auto du : ros)
{
cout << "\t" << du.name << "\t" << du.HealthPoint << "\t" << du.property << "\t" << du.age << "\t" << du.sex << endl;
}
}
// hero.h: 此文件包含 "hero" 类。当作视图式结构体 策略模式 Strategy Pattern C++ 14
// 2023年5月1日 涂聚文 Geovin Du Visual Studio 2022 edit.
#pragma once
#ifndef HEROSIMPLE_H
#define HEROSIMPLE_H
#include<cstring>
#include<stdbool.h>
#include<stdlib.h>
#include<iostream>
#include<malloc.h>
#include<cmath>
#include <iostream>
#include <sstream>
#include <vector>
#include <algorithm>
#include <array>
#include <functional>
#include <list>
#include <string>
#include <string.h>
using namespace std;
namespace DuStructSimple
{
/// <summary>
///
/// </summary>
struct hero
{
/// <summary>
///
/// </summary>
string name;
/// <summary>
///
/// </summary>
int age;
/// <summary>
///
/// </summary>
float HealthPoint;
/// <summary>
///
/// </summary>
long property;
/// <summary>
///
/// </summary>
string sex;
/// <summary>
///
/// </summary>
/// <param name="Obj"></param>
/// <returns></returns>
bool operator<(const hero& Obj) const
{
return HealthPoint < Obj.HealthPoint;
}
};
/// <summary>
/// 年龄排序
/// </summary>
/// <param name="arr"></param>
/// <param name="len"></param>
void bubbleAgeSort(hero arr[], int len)
{
for (int i = 0; i < len - 1; i++)
{
for (int j = 0; j < len - 1 - i; j++)
{
if (arr[j].age > arr[j + 1].age)
{
hero temp = arr[j];//替换值
arr[j] = arr[j + 1];
arr[j + 1] = temp;
}
}
}
}
/// <summary>
/// 容器生命点排序
/// </summary>
/// <param name="query"></param>
void bubbleHealthPointSort(vector<hero>& query) {
int n = query.size();//;
for (int i = 0; i < n - 1; i++) {
for (int j = 0; j < n - i - 1; j++) {
if (query[j].HealthPoint > query[j + 1].HealthPoint) {
swap(query[j], query[j + 1]);
}
}
}
}
/// <summary>
///
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
bool compareTwohero(hero a, hero b)
{
// If total marks are not same then
// returns true for higher total
if (a.HealthPoint != b.HealthPoint)
return a.HealthPoint > b.HealthPoint;
// If marks in Maths are same then
// returns true for higher marks
if (a.property != b.property)
return a.property > b.property;
return (a.age > b.age);
}
}
#endif
/// <summary>
/// 英雄显示示例
/// </summary>
void GeovinDu::displayHero()
{
hero rosdu[5] = { {"赵二",23,100,50,"男"},{"李三",28,105,70,"男"},{"王四",26,120,40,"男"},{"刘英",21,90,80,"女"},{"何五",20,130,78,"男"} };
vector<hero> ros = { {"赵二",23,100,50,"男"},{"Geovin Du",28,105,70,"男"},{"涂聚文",26,120,40,"男"},{"刘英",21,90,80,"女"},{"何五",20,130,78,"男"} };
//1种冒泡排序
cout << "英雄年龄冒泡排序：" << endl;
bubbleAgeSort(rosdu, 5);
cout << "\t姓名" << "\t生命值" << "\t财点" << "\t年龄" << "\t性别" << endl;
for (auto du : rosdu)
{
cout << "\t" << du.name << "\t" << du.HealthPoint << "\t" << du.property << "\t" << du.age<<"\t"<<du.sex << endl;
}
cout << "英雄生命点排序：" << endl;
//2种排序
sort(ros.begin(), ros.end(), compareTwohero);
cout << "\t姓名" << "\t生命值" << "\t财点" << "\t年龄" << "\t性别" << endl;
for (auto du : ros)
{
cout << "\t" << du.name << "\t" << du.HealthPoint << "\t" << du.property << "\t" << du.age << "\t" << du.sex << endl;
}
cout << "英雄生命点容器冒泡排序：" << endl;
//3容器冒泡种排序
bubbleHealthPointSort(ros);
cout << "\t姓名" << "\t生命值" << "\t财点" << "\t年龄" << "\t性别" << endl;
for (auto du : ros)
{
cout << "\t" << du.name << "\t" << du.HealthPoint << "\t" << du.property << "\t" << du.age << "\t" << du.sex << endl;
}
cout << "英雄财点排序：" << endl;
//4种排序
// Using lambda expressions in C++11
sort(ros.begin(), ros.end(), [](const hero& lhs, const hero& rhs) {
return lhs.property < rhs.property;
});;
cout << "\t姓名" << "\t生命值" << "\t财点" << "\t年龄" << "\t性别" << endl;
for (auto du : ros)
{
cout << "\t" << du.name << "\t" << du.HealthPoint << "\t" << du.property << "\t" << du.age << "\t" << du.sex << endl;
}
}
哲学管理(学)人生, 文学艺术生活, 自动(计算机学)物理(学)工作, 生物(学)化学逆境, 历史(学)测绘(学)时间, 经济(学)数学金钱(理财), 心理(学)医学情绪, 诗词美容情感, 美学建筑(学)家园, 解构建构(分析)整合学习, 智商情商(IQ、EQ)运筹(学)生存.---Geovin Du(涂聚文）
浙公网安备 33010602011771号