面向对象的程序设计第五次作业

佚名 7年前 (2019-04-10) 随笔 1391人围观抢沙发百度已收录

#include <bits/stdc++.h>
using namespace std;
 
struct Point
{
    int x;
    int y;
};
 
void displayMenu() {
    for (int i = 0; i < 32; ++i)
        cout << "*";
    cout << endl;
    cout << "    1.Circle（圆）" << endl;
    cout << "    2.Rectangle（长方形）" << endl;
    cout << "    0.Exit（退出）" << endl;
    for (int i = 0; i < 32; ++i)
        cout << "*";
    cout << endl;
    cout << "Please select the shape:";
}
 
void getTwoPoints(struct Point * P1, struct Point * P2) {
     
}
 
void printPoint(struct Point *) {
 
}
 
void drawCircle(struct Point * P1, struct Point * P2) {
    if (P2 -> x - P1 -> x == P2 -> y - P1 -> y) {
        cout << "Draw a circle at center (" << (P1 -> x + P2 -> x) / 2 << "," << (P2 -> y + P1 -> y) / 2 << ")" << "with radius " << (P2 -> x - P1 -> x) / 2 << endl;
    }
    else {
        cout << "Not a circle, select again" << endl;
    }
 
}
 
void drawRectangle(struct Point * P1, struct Point * P2) {
    cout << "Draw a rectangle at toleft(" << P1 -> x << "," << P1 -> y << "), whose width is " <<  P2 -> x - P1 -> x << " and height is " << P2 -> y - P1 -> y << endl;
}
 
int main () {
    int choice;
    struct Point startP, endP;
    while (choice) {
        displayMenu();
        cin >> choice;
            switch (choice) {
        case 1:
            cout << "Please input the coordinate(x,y)of the start point:";
            cin >> startP.x >> startP.y;
            cout << "Please input the coordinate(x,y)of the end point:";
            cin >> endP.x >> endP.y;
            if (endP.x <= startP.x || endP.y <= startP.y){
                cout << "输入点的坐标存在问题,请重新输入！" << endl; 
                break;
            }
            //getTwoPoints(&startP, &endP);
            drawCircle(&startP, &endP);
            break;
        case 2:
            cout << "Please input the coordinate(x,y)of the start point:";
            cin >> startP.x >> startP.y;
            cout << "Please input the coordinate(x,y)of the end point:";
            cin >> endP.x >> endP.y;
            if (endP.x <= startP.x || endP.y <= startP.y){
                cout << "输入点的坐标存在问题,请重新输入！" << endl; 
                break;
            }
            //getTwoPoints(&startP, &endP);
            drawRectangle(&startP, &endP);
            break;
        case 0:
            cout << "Good Bye!\n";
            break;
        default:
            cout << "Not supported! Please select again!\n";
            break; 
        }
    }
    return 0;
}
/*
1
5 20
15 30
1
5 20
15 25
2
3 10
20 30
3
0
*/

#include <bits/stdc++.h>

using namespace std;

struct Rule
{
	double money;
	double rate;
};

void showMenu() {
	cout << "请输入规则的条数：" << endl;;
}

double computeTax(struct Rule rules[], int n, double income) {
	double ans = 0;
	for (int i = n; i >= 1; i--) {
		if (income > rules[i].money) {
			ans += (income - rules[i].money) * rules[i].rate / 100;
			while (i - 1) {
				ans += (rules[i].money - rules[i - 1].money) * rules[i - 1].rate / 100;
				i--;
			}
			break;
		}
	}
	return ans;
}

int main () {
	showMenu();
	int N = 0;
	cin >> N;
	struct Rule rule[10];
	for (int i = 1; i <= N; ++i) {
		cout << "请输入第" << i << "条规则：";
		cin >> rule[i].money >> rule[i].rate;
	}

	double income;
	cout << "请输入您的收入：";
	cin >> income;
	while (income != -1) {
		cout << "您的收入是：" << income << ",";
		cout << "应缴所得税：" << fixed << setprecision(2) << computeTax(rule, N, income) << "元。";
		cout << endl;
		cout << "请输入您的收入：";
		cin >> income;
	}
	cout << "再见" << endl;
}
3
800 3
2000 4
5000 3
0
800
801
2000
1999
5000
10000
-1

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