这个模型可以在MATLAB中，为数据库的进入，提供时间倒数，以防止过多地试密码，从而提高系统的保密性-　　TIMEOUT = LOGINTIMEOUT(FIRSTARG,SECONDARG) returns the current

　　value of time allowed for a connection to a database to be

　　successful. FIRSTARG, an optional argument, is a string that

　　specifies the JDBC driver to be used establishing the database

　　connection. SECONDARG, an optional argument, is an integer that

　　specifies the length of time the driver will attempt to make a

　　connection to a database. If FIRSTARG is not specified then the

　　default JDBC/ODBC bridge is used to establish the connection to

　　the database. If function is used without arguments then the

　　current time out value is returned.