我用ADO的Execute执行插入语句插入一条记录后程序就停止运行，不知道为什么？？

sbzhanglangming

我用ADO的Execute执行插入语句插入一条记录后程序就停止运行，不知道为什么？？
代码如下：
#import "c:\Program Files\Common Files\System\ADO\msado15.dll" \
  no_namespace rename("EOF", "EndOfFile")
#include <stdio.h>
#include <icrsint.h>


extern"C"void datainsert(int a,float p1,float p2,float p3,float p4,float p5,float p6)
{


::CoInitialize(NULL);
  try
  { char sql[41];
_variant_t RecordsAffected;
_ConnectionPtr m_pConnection;
m_pConnection.CreateInstance(_uuidof(Connection));
  _RecordsetPtr m_pRecordset;
m_pConnection->Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=二维有压渗流数据.mdb;","","",adModeUnknown);
  m_pRecordset.CreateInstance(_uuidof(Recordset));
m_pRecordset->Open("SELECT * FROM 单刚矩阵存储",
  "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=二维有压渗流数据.mdb",
  adOpenStatic, adLockUnspecified, adCmdText);
sprintf(sql,"INSERT INTO 单刚矩阵存储(单元号,K11,K12,K13,K22,K23,K33)VALUES(%d,%f,%f,%f,%f,%f,%f)",a,p1,p2,p3,p4,p5,p6);
m_pConnection->Execute(sql,&RecordsAffected,adCmdText);  




  }
  catch (_com_error &e)
  {
  printf("Error:\n");
  printf("Code = %08lx\n", e.Error());
  printf("Meaning = %s\n", e.ErrorMessage());
  printf("Source = %s\n", (LPCSTR) e.Source());
  printf("Description = %s\n", (LPCSTR) e.Description());
  }
  ::CoUninitialize();
}