一级理论和二级理论的区别

If the data to be sent empties the send buffer, the operating system 's tcp/ip stack automatically sets the psh flag for tcp packets, Similarly, when the server receives a message set with psh + sck flag, it means that the current data transmission has ended, so it is necessary to immediately submit the data to the service process and empty the receiving buffer without waiting to judge whether there will be additional data arriving.紫月剑的粉丝一个个，不停地刷着留言。The Japanese name of the tour is "de" and its pronunciation is "Nagoya Toku Nabi". Now it has also launched a web version! As long as you take out your mobile phone and enter the official website, you can see the discounts, official introductions and modes of transportation that you can enjoy, making it easier to travel from now on! The interface is shown in the following figureEnter the flight simulator. Using the flight simulator, you can use the flight simulator function in Google Earth to fly all over the earth. It allows you to use a mouse or other controller to control the simulated plane.爱屋及乌，他不由自主地对他另眼相待，何况，大苞谷本身也充满传奇。ALT + TK such as quick selection雍齿赫然发现，领军的正是那个他看不起的刘邦，气急败坏之下，怒骂道：刘老三，你怎么会在这？你个卑鄙小人，偷袭算什么本事？有能耐我们光明正大大战一场。