体重指数程序

 1 //体重指数程序
 2 #include <fstream>
 3 #include <iostream>
 4 #include <iomanip>
 5 #include <string>
 6 using namespace std;
 7 
 8 int main()
 9 {
10     const int BMI_CONSTANT = 703;
11     float weight;
12     float height;
13     float bodyMassIndex;
14     bool dadtaAreOk;
15 
16     cout << "。。。的" << endl;
17     cout << "输入体重（千克） " << endl;
18     cin >> weight;
19     weight = weight / 0.4535924;
20     cout << "输入升高（厘米） " << endl;
21     cin >> height;
22     height = height / 2.54;
23 
24     if (weight < 0 || height < 0)
25         dadtaAreOk = false;
26     else
27         dadtaAreOk = true;
28 
29     if (dadtaAreOk)
30     {
31         bodyMassIndex = weight * BMI_CONSTANT / (height * height);
32 
33         cout << "your body indedx is " << bodyMassIndex
34             << "." << endl;
35         cout << "interpretation ans instructiobn:" << endl;
36         if (bodyMassIndex < 20)
37             cout << "体重不不足，喝杯奶昔" << endl;
38         else if (bodyMassIndex <= 25)
39             cout << "正常，喝杯牛奶" << endl;
40         else if (bodyMassIndex <= 30)
41             cout << "超重，喝杯冰茶" << endl;
42         else
43             cout << "超重，看医生吧" << endl;
44     }
45     else
46         cout << "数据有问题" << endl;
47 
48     cin.get();
49     cin.get();
50 
51     return 0;
52 }