"Windows Application Advanced Programming - C # article" P180 page, "At any time, the database only supports a limited number of open connections to the database. When you have already used the connection, you should explicitly tell the connection object to disconnect. Other applications can be connected when accessing the database. Relying on unused unit collections to close the connection is not enough - the useless unit collected to close it, and in fact we can close it before this, to use other The resources needed. "
I am thinking, if I have never touched the C New / Delete, the destructive function, I will learn "I can concentrate on the problem he wants to solve", he will think of this time. what?
The development of the language, the development of tools, it is impossible to make the programmer stand all over a abstract level without the bottom of the tube. Programming is a professional thing in computer, not a simple translation work.
