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not have to pre-establish a specific "path" to the host before transmitting the data in the message Exchange network. The Internet Protocol provides an "unreliable" packet transmission mechanism (also known as "best effort"), i.e. it does not guarantee that the data will be transmitted accurately. Packets may be corrupted at the time of arrival, in order of confusion (as compared to other packets sent together), generating redundant packets, or losing all. If the application needs to ensure rel

Php 5X uses the built-in sqlite3 link database, PDO link sqlite (low-cost development) (1), sqlite3pdo A program engineer occasionally encounters code deployment. There are no databases such as mysql on the server, or the database price must be calculated outside the space, you can consider using sqlite when your project is small or you cannot afford to buy a database space. Sqlite is a small database, but

Each designer should have its own library of materials, which is certain. I do not agree with other people these high management costs of behavior, because time is really valuable. So, I explored a low management cost of the material library to build a solution. Directory INDEX: The rules created; Dividing the material storehouse; Directory description; Use "material" and rules; Inspiration to join th

Name of the author. Note: There are three considerations: 1. this is an implementation project, that is to say, the algorithm, architecture, everything is in the experiment, it needs to be verified, it takes more time, so it is impossible to invest in hardware, it must be some low-cost experimental products. 2. Use Linux and the algorithms that work with you to fully control the hardware, so that the hardwa

The proposal of Double-Layer Broadband Wireless Access improves the wireless access and fixed wireless access of mobile terminals in fixed areas. For low-cost and high-performance architectures, the concept of dual-layer broadband wireless access has become a new design concept. Fixed broadband wireless access technology, this emerging access method is rapidly gaining popularity due to its fast constructio