1 /**
2 *程序功能：没有实现中文或英文或日文的选择。
3 * 倒计时功能（这个功能我百度了一下 需要windows编程 和 多线程技术支持*实力不够 做不出来 我把它改成了一个记录答题时间）
4 *程序功能：实现了 判断对错 累计分数 记录答题时间（秒为单位）
5 * 支持多个运算符 支持括号
6 * 具体生成算数 是采用的switch分支结构
7 *
8 */
9 #include<windows.h>
10 #include <algorithm>
11 #include<iostream>
12 #include<cstdlib>
13 #include<ctime>
14 using namespace std;
15 float Practice();
16 float Addtion();
17 float Subtract();
18 float Multiply();
19 float Modulo();
20 void menu();
21 int main()
22 {
23 int count = 0;
24 int right = 0;
25 int wrong = 0;
26 cout.setf(ios::fixed);
27 cout.precision(2);
28 srand((unsigned)time(NULL));
29 float answer,write=0.00;
30 int check = 1;
31
32 while (check)
33 {
34 // 声明DWORD变量 记录时间
35 DWORD dwStart;
36 DWORD dwEnd;
37 DWORD useTime;
38 int choice;
39 menu();
40 cin >> choice;
41 switch (choice)
42 {
43 case 1:
44 answer = Addtion();
45 break;
46 case 2:
47 answer = Subtract();
48 break;
49 case 3:
50 answer = Multiply();
51 break;
52 case 4:
53 answer = Modulo();
54 break;
55 case 5:
56 answer = Practice();
57 break;
58 default:
59 break;
60 }
61 // 使用GetTickCount（）来获取时间
62 dwStart = GetTickCount();
63 cin >> write;
64 dwEnd = GetTickCount();
65 useTime = dwEnd - dwStart;
66 cout << "答题时间为："<< useTime/1000 <<"s"<< endl;
67 if (write == answer)
68 {
69 right++;
70 cout << "回答正确。" <<endl
71 <<"回答问题总分为 "<<++count<<" 回答正确分数为 "<<
72 right<<" 错误分数为 "<<wrong<< endl;
73 }
74 else
75 {
76 wrong++;
77 cout << "回答错误。" << endl
78 << "回答问题总分为 " << ++count << " 回答正确分数为 " <<
79 right << " 错误分数为 " << wrong << endl;
80 cout << "正确答案为："<<answer<<endl;
81 }
82
83 cout << "继续做题请按1, 退出请按0"<<endl;
84 cin >> check;
85 }
86 system("pause");
87 return 0;
88 }
89 float Practice()
90 {
91 int range;
92 cout << "请输入多少数以内的四则运算：";
93 cin >> range;
94 cout << endl;
95 int a[4] = { 0 };
96 srand((unsigned)time(NULL));// 根据系统时间生成随机数
97 for (int i = 0; i < 4; i++)
98 a[i] = (rand() % range) + 1;
99 sort(a,a+4); // 将数组进行升序排列
100 cout << "请输入答案。(小数精确到后2位！)" << endl;
101 switch ((rand() % 16) + 1)
102 {
103 case 1:
104 cout << a[0]<< "*"<< a[1] <<"=" ;
105 return a[0] * a[1];
106 case 2:
107 cout << a[0] << "+" << a[1] << "=";
108 return a[0] + a[1];
109 case 3:
110 cout << a[0] << "-" << a[1] << "=";
111 return a[0] - a[1];
112 case 4:
113 cout << a[0] << "/" << a[1] << "=";
114 return (a[0] / (a[1]*1.0));
115 case 5:
116 cout << "(" << a[0] << "/" << a[1] << "+" << a[2] << ")" << "*" << a[3] << "=";
117 return (a[0] / (a[1] * 1.0) + a[2]) * a[3];
118 case 6:
119 cout << "(" << a[0] << "-" << a[1] << "+" << a[2] << ")" << "/" << a[3] << "=";
120 return (a[0] - a[1] + a[2]) /a[3];
121 case 7:
122 cout << a[0] << "/" << a[1] << "+" << a[2] << "*" << a[3] << "=";
123 return a[0] / (a[1] * 1.0) + a[2] * a[3];
124 case 8:
125 cout << a[0] << "+" << a[1] << "+" << a[2] << "*" << a[3] << "=";
126 return a[0] + a[1] + a[2] * a[3];
127 case 9:
128 cout << a[2] << "-" << a[1] << "+" << a[2] << "*" << a[3] << "=";
129 return a[2] - a[1] + a[2] * a[3];
130 case 10:
131 cout << a[0] << "+" << a[1] << "-" << a[2] << "=";
132 return a[0] + a[1] - a[2];
133 case 11:
134 cout << a[0] << "*" << a[1] << "-" << a[2] << "=";
135 return a[0] * a[1] - a[2];
136 case 12:
137 cout << a[0] << "*" << a[1] << "/" << a[2] << "=";
138 return a[0] * a[1] / (a[2]*1.0);
139 case 13:
140 cout << a[0] << "*" << a[1] << "*" << a[2] << "=";
141 return a[0] * a[1] * a[2];
142 case 14:
143 cout << "(" << a[0] << "-" << a[1] << ")" << "*" << " (" << a[2] << "/" << a[3] << ")" << "=";
144 return (a[0] - a[1]) * (a[2] / (a[3]*1.0));
145 case 15:
146 cout << a[0] << " /" << a[1] << "+" << a[2] << "/" << a[3] << "=";
147 return a[0] / (a[1]*1.0) + a[2] / (a[3]*1.0);
148 case 16:
149 cout << "(" << a[0] << " /" << a[1] << "+" << a[2] << ")" << "/" << a[3] << "=";
150 return (a[0] / (a[1] * 1.0) + a[2]) / (a[3] * 1.0);
151 default:
152 cout << a[0] << "+" << a[1] << "=";
153 return a[0] + a[1];
154
155 }
156 }
157 float Addtion()
158 {
159 int range;
160 cout << "请输入多少数以内的四则运算：";
161 cin >> range;
162 cout << endl;
163 int a[4] = { 0 };
164 srand((unsigned)time(NULL));// 根据系统时间生成随机数
165 for (int i = 0; i < 4; i++)
166 a[i] = (rand() % range) + 1;
167 sort(a, a + 4); // 将数组进行升序排列
168 cout << "请输入答案。(小数精确到后2位！)" << endl;
169 switch ((rand() % 9) + 1)
170 {
171 case 1:
172 cout << a[0] << "+" << a[1] << "=";
173 return a[0] + a[1];
174 case 2:
175 cout << a[3] << "+" << a[1] <<"+"<<a[2]<< "=";
176 return a[3] + a[1]+a[2];
177 case 3:
178 cout << a[3] << "+" << a[1] << "=";
179 return a[3] + a[1];
180 case 4:
181 cout << a[4] << "+" << a[1] << "+"<<a[2]<<"+"<<a[3]<<"=";
182 return a[4]+a[3]+a[2]+a[1];
183 case 5:
184 cout << a[0] << "+" << a[1] << "+" << a[2] << "+" << a[3] << "=";
185 return a[0] + a[1] + a[2] + a[3];
186 case 6:
187 cout << a[3] << "+" << a[1] << "+" << a[2] << "+"<< a[2] << "=";
188 return a[3] + a[1] + a[2] + a[2];
189 case 7:
190 cout << a[0] << "+" << a[1] << "+" << a[3]<<"/"<<a[3] << "+" << a[3] << "=";
191 return a[0] + a[1] + a[3]/a[3] + a[3];
192 case 8:
193 cout << a[0] << "+" << a[1] << "+" << a[2] << "+" << a[3] << "=";
194 return a[0] + a[1] + a[2] + a[3];
195 case 9:
196 cout << a[2] << "+" << a[1]<<"/"<<a[3] << "+" << a[2] << "+" << a[3] << "=";
197 return a[2] + a[1]/a[3] + a[2] + a[3];
198 default:
199 cout << a[0]<<"/"<<a[3] << "+" << a[1] << "=";
200 return a[0]/a[3] + a[1];
201
202 }
203 }
204 float Subtract()
205 {
206 int range;
207 cout << "请输入多少数以内的四则运算：";
208 cin >> range;
209 cout << endl;
210 int a[4] = { 0 };
211 srand((unsigned)time(NULL));// 根据系统时间生成随机数
212 for (int i = 0; i < 4; i++)
213 a[i] = (rand() % range) + 1;
214 sort(a, a + 4); // 将数组进行升序排列
215 cout << "请输入答案。(小数精确到后2位！)" << endl;
216 switch ((rand() % 9) + 1)
217 {
218 case 1:
219 cout << a[0] << "-" << a[1] << "=";
220 return a[0] - a[1];
221 case 2:
222 cout << a[3] << "-" << a[1] << "-" << a[2] << "=";
223 return a[3] - a[1] - a[2];
224 case 3:
225 cout << a[3] << "-" << a[1] << "=";
226 return a[3] - a[1];
227 case 4:
228 cout << a[4] << "-" << a[1] << "-" << a[2] << "-" << a[3] << "=";
229 return a[4] - a[3] - a[2] - a[1];
230 case 5:
231 cout << a[0] << "-" << a[1] << "-" << a[2] << "-" << a[3] << "=";
232 return a[0] - a[1] - a[2] - a[3];
233 case 6:
234 cout << a[3] << "-" << a[1] << "-" << a[2] << "-" << a[2] << "=";
235 return a[3] - a[1] - a[2] - a[2];
236 case 7:
237 cout << a[0] << "-" << a[1] << "-" << a[3] << "/" << a[3] << "-" << a[3] << "=";
238 return a[0] - a[1] - a[3] / a[3] - a[3];
239 case 8:
240 cout << a[0] << "-" << a[1] << "-" << a[2] << "-" << a[3] << "=";
241 return a[0] - a[1] - a[2] - a[3];
242 case 9:
243 cout << a[2] << "-" << a[1] << "/" << a[3] << "-" << a[2] << "-" << a[3] << "=";
244 return a[2] - a[1] / a[3] - a[2] - a[3];
245 default:
246 cout << a[0] << "/" << a[3] << "-" << a[1] << "=";
247 return a[0] / a[3] - a[1];
248
249 }
250 }
251 float Modulo()
252 {
253 int range;
254 cout << "请输入多少数以内的四则运算：";
255 cin >> range;
256 cout << endl;
257 int a[4] = { 0 };
258 srand((unsigned)time(NULL));// 根据系统时间生成随机数
259 for (int i = 0; i < 4; i++)
260 a[i] = (rand() % range) + 1;
261 sort(a, a + 4); // 将数组进行升序排列
262 cout << "请输入答案。(小数精确到后2位！)" << endl;
263 switch ((rand() % 4) + 1)
264 {
265 case 1:
266 cout << "(" << a[0] << "/" << a[1] << ")" << "+" << "(" << a[2] << "/" << a[3] << ")" << "=" << endl;
267 return (a[0] / (a[1]*1.0)) + (a[2] / (a[3]*1.0));
268 case 2:
269 cout << "(" << a[0] << "/" << a[0] << ")" << "+" << "(" << a[2] << "/" << a[3] << ")" << "=" << endl;
270 return (a[0] / a[0]) + (a[2] / (a[3]*1.0));
271 case 3:
272 cout << "(" << a[1] << "/" << a[1] << ")" << "+" << "(" << a[0] << "/" << a[3] << ")" << "=" << endl;
273 return (a[1] / (a[1]*1.0)) + (a[0] / (a[3]*1.0));
274 case 4:
275 cout << "(" << a[0] / a[2] << ")" << "-" << a[2] << "/" << a[3] << "=" << endl;
276 return a[0] / (a[2]*1.0) + a[2] / (a[3]*1.0);
277 default:
278 cout << "(" << a[1] << "/" << a[1] << ")" << "+" << "(" << a[0] << "/" << a[3] << ")" <<"="<< endl;
279 return (a[1] / (a[1]*1.0)) + (a[0] / (a[3]*1.0));
280
281 }
282 }
283 float Multiply()
284 {
285 int range;
286 cout << "请输入多少数以内的四则运算：";
287 cin >> range;
288 cout << endl;
289 int a[4] = { 0 };
290 srand((unsigned)time(NULL));// 根据系统时间生成随机数
291 for (int i = 0; i < 4; i++)
292 a[i] = (rand() % range) + 1;
293 sort(a, a + 4); // 将数组进行升序排列
294 cout << "请输入答案。(小数精确到后2位！)" << endl;
295 switch ((rand() % 9) + 1)
296 {
297 case 1:
298 cout << a[2] << "*" << a[1] << "=";
299 return a[2] * a[1];
300 case 2:
301 cout << a[3] << "*" << a[1] << "*" << a[2] << "=";
302 return a[3] * a[1] * a[2];
303 case 3:
304 cout << a[3] << "*" << a[1] << "=";
305 return a[3] * a[1];
306 case 4:
307 cout << a[4] << "*" << a[1] << "*" << a[2] << "*" << a[3] << "=";
308 return a[4] * a[3] * a[2] * a[1];
309 case 5:
310 cout << a[0] << "*" << "(" << a[1] << "/" << a[3] << ")" << "*" << a[2] << "*" << a[3] << "=";
311 return a[0] * (a[1] / (a[3]*1.0)) * a[2] * a[3];
312 case 6:
313 cout << "(" << a[2] << "/" << a[3] << ")" << "*" << "(" << a[1] << "/" << a[2] << ")" << "*" << a[2] << "=";
314 return (a[2] / (a[3]*1.0)) * (a[1] / (a[2]*1.0)) * a[2];
315 case 7:
316 cout << a[0] << "*" << a[1] << "*" << "(" << a[3] << "/" << a[3] << ")" << "*" << a[3] << "=";
317 return a[0] * a[1] * (a[3] / (a[3]*1.0)) * a[3];
318 case 8:
319 cout << a[2] << "*" << a[1] << "*" << a[2] << "*" << a[3] << "=";
320 return a[2] * a[1] * a[2] * a[3];
321 case 9:
322 cout << a[2] << "*" << "(" << a[1] << "/" << a[3] << ")" << "*" << a[2] << "*" << a[3] << "=";
323 return a[2] * (a[1] / (a[3]*1.0)) * a[2] * a[3];
324 default:
325 cout << a[0] << "*" << a[3] << "*" << a[1] << "=";
326 return a[0] * a[3] * a[1];
327
328 }
329 }
330 void menu()
331 {
332 cout << "1 加法运算 " << " 2 减法运算 " << " 3 乘法运算 " << " 4 除法运算 " << " 5 混合运算"<<endl;
333 cout << "请输入你要做的题目类型：";
334 }
时间： 2024-10-28 14:52:32