terminate called after throwing an instance of 'otl_tmpl_exception<otl_exc, otl_conn, otl_cur>`解决方法
在linux下用c++连接MySQL或oracle数据库时,若频繁调用otlstream构造函数,发生terminatecalledafterthrowinganinstanceof'otl_tmpl_exception<otl_exc,otl_conn,otl_cur>`的问题,其解决方法为:在调用otl_connect类的voidrlogon(constchar*connect_str,con