sqlite3 实现批量处理 sql语句，避免频繁操作数据库，从而影响性能的问题

sqlite3 实现批量处理 sql语句，避免频繁操作数据库，从而影响性能的问题。C++语言，begin开始事务，commit提交事务处理。

int SQL_EXE(std::vector<std::string> vtExeSql){if (NULL == m_pDB){return -1;}char* pErrMsg = NULL;int iRet = SQLITE_OK;iRet = sqlite3_exec(m_pDB, "BEGIN", NULL, NULL, &pErrMsg);if (SQLITE_OK != iRet){if (NULL != pErrMsg){sqlite3_free(pErrMsg);}return -1;}std::vector<std::string>::const_iterator iter = vtExeSql.begin();for (; iter != vtExeSql.end(); ++iter){std::string strSql = *iter;if (!(strSql.empty())){iRet = sqlite3_exec(m_pDB, strSql.c_str(), NULL, NULL, &pErrMsg);if (SQLITE_OK != iRet){continue;}}}iRet = sqlite3_exec(m_pDB, "COMMIT", NULL, NULL, &pErrMsg);if (SQLITE_OK != iRet){iRet = -1;}if (NULL != pErrMsg){sqlite3_free(pErrMsg);}return iRet;}