我这次测试的为取值范围
分别取都为正数 负数 正负数都有 已经到10000取值是是否正确
1 #include<iostream.h>
2 #include<stdlib.h>
3 #include<time.h>
4 int main()
5 {
6 srand(time(NULL));
7 int a, b, c,d,f,g,h,p,q,r,s;
8 cout<<"请输入计算的数值范围(min)：";
9 cin>>p;
10 cout<<"请输入计算的数值范围(max)：";
11 cin>>q;
12 cout<<"请输入题目数量i= ";
13 cin>>d;
14 cout<<"是否需要乘除法1/0 :";
15 cin>>f;
16 cout<<"是否需要加入括号1/0:";
17 cin>>g;
18 if (f==1)
19 {
20 if(g==1)
21 for(int i = 1; i <= d; i++)
22 {
23 a = rand() % (q-p+1)+p;
24 b = rand() % (q-p+1)+p;
25 h = rand() % (q-p+1)+p;
26 c = rand() % 6;
27 switch (c)
28 {
29 case 0:
30 cout<< a << "+" << b << "=" << endl;
31 break;
32 case 1:
33 cout<< a << "-" << b << "=" << endl;
34 break;
35 case 2:
36 cout<< a << "*" << b << "=" << endl;
37 break;
38 case 3:
39 cout<< a << "/" << b << "=" << endl;
40 break;
41 case 4:
42 cout<<"("<<a<<"+"<<b<<")"<<"-"<<h<<"="<<endl;
43 break;
44 case 5:
45 cout<<"("<<a<<"-"<<b<<")"<<"+"<<h<<"="<<endl;
46 }
47 }
48 else
49 for(int i = 1; i <= d; i++)
50 {
51 a = rand() % (q-p+1)+p;
52 b = rand() % (q-p+1)+p;
53 c = rand() % 4;
54 switch (c)
55 {
56 case 0:
57 cout<< a << "+" << b << "=" << endl;
58 break;
59 case 1:
60 cout<< a << "-" << b << "=" << endl;
61 break;
62 case 2:
63 cout<< a << "*" << b << "=" << endl;
64 break;
65 case 3:
66 cout<< a << "/" << b << "=" << endl;
67 break;
68 }
69 }
70 }
71 else
72 if(g==1)
73 for(int i = 1; i <= d; i++)
74 {
75 a = rand() % (q-p+1)+p;
76 b = rand() % (q-p+1)+p;
77 h = rand() % (q-p+1)+p;
78 c = rand() % 4;
79 switch (c)
80 {
81 case 0:
82 cout<< a << ‘+‘<< b << "=" << endl;
83 break;
84 case 1:
85 cout<< a << "-" << b << "=" << endl;
86 break;
87 case 2:
88 cout<<"("<<a<<"+"<<b<<")"<<"-"<<h<<"="<<endl;
89 break;
90 case 3:
91 cout<<"("<<a<<"-"<<b<<")"<<"+"<<h<<"="<<endl;
92 }
93 }
94 else
95 for(int i = 1; i <= d; i++)
96 {
97 a = rand() % (q-p+1)+p;
98 b = rand() % (q-p+1)+p;
99 c = rand() % 2;
100 switch (c)
101 {
102 case 0:
103 cout<< a << "+" << b << "=" << endl;
104 break;
105 case 1:
106 cout<< a << "-" << b << "=" << endl;
107 break;
108 }
109 }
110 return 0;
111 }
此次测试全部正确 没有出现错误。就这样。。。
时间： 2024-08-03 23:25:50