以下内容为程序代码:

1 __declspec(dllexport) int WINAPI MYYGDC1(CALCINFO* pData)
2 {
3     if (CONFIRMLOCKINFO() == 0) //加密狗检测不合法
4         return 0;
5     if (pData-＞m_pfParam1 &&     //参数1有效
6         pData-＞m_nParam1Start ＞= 0                    //参数1为序列数
7         )
8     {
9         const float* pValue = pData-＞m_pfParam1;    //参数1
10         int nFirst = pData-＞m_nParam1Start;            //有效值起始位
11         float fParam = 50;            //参数2
12         int nPeriod = (int)fParam;
13         if (nFirst ＞= 0 && nPeriod ＞ 0)
14         {
15             float fTotal;
16             int i, j;
17             for (i = nFirst + nPeriod - 1; i ＜ pData-＞m_nNumData; i++)
18             {
19                 fTotal = 0.0f;
20                 float fSum = 0.0f;
21                 for (j = 0; j ＜ nPeriod; j++) //累加
22                     fTotal += (pValue[i - j] * (j + 1));
23                 for (j = 1; j ＜= nPeriod; j++)
24                     fSum += j;
25
26                 pData-＞m_pResultBuf[i] = fTotal / fSum;//平均
27             }
28             return nFirst + nPeriod - 1;
29         }
30     }
31 }