20250305-Rain
1. 链表
#include <iostream>
using namespace std;
class Node
{
public:
int val; // 当前节点存储的值
Node *next; // 下一个节点
typedef Node *List; // List表示头结点, List->next是第一个存储数据的节点
public:
/*
List createList()
{
}
*/
// 构造函数
Node() : val(0), next(nullptr) {};
// 添加到头部
void addAtHead(int val)
{
Node *newNode = new Node();
newNode->val = val;
newNode->next = this->next;
this->next = newNode;
}
// 添加到尾部
void addAtTail(int val)
{
Node *newNode = new Node();
newNode->val = val;
Node *q = this;
while (q->next)
{
q = q->next;
}
q->next = newNode;
}
// 指定索引插入
void addAtIndex(int index, int val)
{
Node *p = this;
for (int i = 0; i < index; i++)
{
// idx exceed socope
if (!p->next)
{
return;
}
p = p->next;
}
Node *newNode = new Node();
newNode->val = val;
newNode->next = p->next;
p->next = newNode;
}
// 指定索引删除
void deleteAtIndex(int index)
{
Node *p = this;
for (int i = 0; i < index; i++)
{
// idx exceed socope
if (!p->next)
{
return;
}
p = p->next;
}
if (p->next)
{
// 删除 temp 节点
Node *temp = p->next;
p->next = temp->next;
delete temp;
}
}
// 打印结点
void SListPrint()
{
Node *q = this->next;
while (q)
{
std::cout << q->val << ' ';
q = q->next;
}
cout << endl;
}
};
int main()
{
Node list;
list.addAtHead(1);
list.addAtTail(2);
list.addAtTail(3);
list.addAtTail(4);
list.addAtIndex(3, 5);
list.addAtHead(6);
list.SListPrint();
list.deleteAtIndex(3);
list.SListPrint();
// 样例输出 :
// 6 1 2 5 3 4
// 6 1 5 3 4
return 0;
}2. 控制台
#include <iostream>
#include <string>
#include <vector>
#include <limits>
using namespace std;
// 清屏函数
void clearScreen()
{
system("cls");
}
// 高亮显示函数
string highlight(const string &text)
{
// 使用ANSI转义序列高亮（仅在支持ANSI的终端有效）
return "\033[1;32m" + text + "\033[0m"; // 绿色高亮
}
// 游戏设置类
class GameSettings
{
private:
vector<string> options = {"Difficulty: Normal", "Music: On", "Volume: 50", "Save/Exit"};
int selectedIndex = 0; // 当前选中的选项索引
public:
void run()
{
while (true)
{
clearScreen();
displaySettings();
char input = getCharInput();
switch (input)
{
case 'w': // 向上移动
selectedIndex = max(0, selectedIndex - 1);
break;
case 's': // 向下移动
selectedIndex = min((int)options.size() - 1, selectedIndex + 1);
break;
case 'a': // 修改选项
if (selectedIndex == options.size() - 1) // 保存
{
cout << "Settings saved!" << endl;
cin.ignore(numeric_limits<streamsize>::max(), '\n'); // 清空输入缓冲区
cin.get(); // 按任意键继续
}
else
{
modifyOption(selectedIndex, false);
}
break;
case 'd': // 修改选项
if (selectedIndex == options.size() - 1) // 退出
{
cout << "Exiting settings..." << endl;
return;
}
else
{
modifyOption(selectedIndex, true);
}
break;
case '\n': // 回车键
if (selectedIndex == options.size() - 1) // 退出
{
cout << "Exiting settings..." << endl;
return;
}
break;
default:
break;
}
}
}
void displaySettings()
{
for (int i = 0; i < options.size(); ++i)
{
if (i == selectedIndex)
{
cout << highlight(options[i]) << endl;
}
else
{
cout << options[i] << endl;
}
}
}
void modifyOption(int index, bool increment)
{
if (index == 0) // 修改难度
{
string difficulty = options[index].substr(12); // 提取当前难度值
if (increment)
{
if (difficulty == "Normal")
options[index] = "Difficulty: Hard";
else if (difficulty == "Hard")
options[index] = "Difficulty: Easy";
else
options[index] = "Difficulty: Normal";
}
else
{
if (difficulty == "Normal")
options[index] = "Difficulty: Easy";
else if (difficulty == "Hard")
options[index] = "Difficulty: Normal";
else
options[index] = "Difficulty: Hard";
}
}
else if (index == 1) // 修改音乐开关
{
string music = options[index].substr(7); // 提取当前音乐状态
if (increment)
{
options[index] = "Music: " + std::string(music == "On" ? "Off" : "On");
}
else
{
options[index] = "Music: " + std::string(music == "On" ? "Off" : "On");
}
}
else if (index == 2) // 修改音量
{
int volume = stoi(options[index].substr(8)); // 提取当前音量值
if (increment)
{
options[index] = "Volume: " + to_string(min(100, volume + 10));
}
else
{
options[index] = "Volume: " + to_string(max(0, volume - 10));
}
}
}
char getCharInput()
{
char input;
cin >> input;
return input;
}
};
int main()
{
GameSettings settings;
settings.run();
return 0;
}3. EasyX
#include <graphics.h>
#include <windows.h> // 包含 Windows API 的头文件
#include <array> // 包含 std::array
#define M_PINK 0x500A8B // 定义粉红色
#define PINK RGB(255, 182, 193)
int brushSize = 5; // 初始笔刷大小
int colorIndex = 0; // 初始颜色索引
const int colors[4] = { RED, PINK, BLACK, WHITE }; // 定义四种颜色
// 点
struct Point {
int x, y;
};
// 线工具
struct LineTool {
int size; // 大小
COLORREF color; // 颜色
struct Point beginPos; // 起点
bool isDown; // 鼠标操作：按下
};
struct LineTool* createLineTool(int size, COLORREF color) {
struct LineTool* pLine = new struct LineTool;
pLine->size = size;
pLine->color = color;
pLine->beginPos.x = 0;
pLine->beginPos.y = 0;
pLine->isDown = false;
return pLine;
}
void drawLine(struct LineTool* pTool, MOUSEMSG m) {
// 鼠标左键按下: 记录起点，标记按下
if (m.uMsg == WM_LBUTTONDOWN) {
pTool->beginPos.x = m.x;
pTool->beginPos.y = m.y;
pTool->isDown = true;
}
// 鼠标左键弹起
if (m.uMsg == WM_LBUTTONUP) {
pTool->isDown = false;
}
// 鼠标移动 + 左键按下
if (m.uMsg == WM_MOUSEMOVE && pTool->isDown) {
setlinestyle(PS_ENDCAP_ROUND, pTool->size);
setcolor(pTool->color);
line(pTool->beginPos.x, pTool->beginPos.y, m.x, m.y);
}
pTool->beginPos.x = m.x;
pTool->beginPos.y = m.y;
}
int main() {
initgraph(800, 600);
setbkcolor(WHITE);
cleardevice();
struct LineTool* pLine = createLineTool(brushSize, colors[colorIndex]);
// 上一次按键状态
bool lastKeyState[256] = { false }; // 用于记录每个按键的上一次状态
// 使用 std::array 明确范围类型
std::array<int, 5> keys = { 'A', 'D', 'Q', 'E', VK_ESCAPE };
while (true) {
// 处理鼠标事件
while (MouseHit()) {
MOUSEMSG m = GetMouseMsg();
drawLine(pLine, m);
}
// 处理键盘事件
for (int key : keys) {
bool currentKeyState = GetAsyncKeyState(key) & 0x8000;
if (currentKeyState && !lastKeyState[key]) { // 按键按下且上一次未按下
switch (key) {
case 'A': // 切换到上一个颜色
colorIndex = (colorIndex - 1 + 4) % 4;
pLine->color = colors[colorIndex];
break;
case 'D': // 切换到下一个颜色
colorIndex = (colorIndex + 1) % 4;
pLine->color = colors[colorIndex];
break;
case 'Q': // 减小笔刷大小
if (brushSize > 1) {
brushSize--;
pLine->size = brushSize;
}
break;
case 'E': // 增大笔刷大小
if (brushSize < 25) {
brushSize++;
pLine->size = brushSize;
}
break;
case VK_ESCAPE: // 按下 ESC 键退出
closegraph();
return 0;
}
}
lastKeyState[key] = currentKeyState; // 更新按键状态
}
// 防止 CPU 占用过高
Sleep(20);
}
return 0;
}
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