By creating an interface to the router 's flow table - the thing that specifies the rules for handling traffic - it allows someone to take control of the way the router directs traffic , to make new routeing decisions and implement them .
First , the application code opens the image stream . It then requests a frame and specifies how long to wait for the next frame of data ( between 0 and an infinite number of milliseconds ) .
首先,应用打开图像流,然后请求一帧,并指定等待下帧数据的时间(0和无限之间的毫秒值)。
When you sign up for google + and set up your friends circle , the program specifies that you should include only " your real friends , the ones you feel comfortable sharing private details with . "
In this line of research , the economist specifies simple rules of thumb by which agents interact with each other , and then lets the computer go to work , grinding out repeated simulations to reveal what kind of unforeseen patterns might emerge .