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For example, in the back-end system, There are tabular data, Each piece of data is preceded by a check box button, When you click the check box button, After obtaining the id, it needs to be passed to the server to send an ajax request. The server needs to record this data, To request, if we send an http request to the server every time we click, For the server, the pressure is relatively high and the network requests are frequent. However, if the real-time data of the system is not very high now, we can collect all ID for a period of time (e.g. 2-3 seconds) through a proxy function and send AJAX requests to the server at one time. Relatively speaking, the network requests are reduced and the server pressure is reduced.黄家为警察世家，黄蒂（李婉华）乃家中长女，警署中则为四当家，是帮办一粒花，性格爽朗，兼且神经质，但做起事却甚具权威。父黄家景（楚原）为人过份客套但乐天，当年因过失被眨为处长司机，但仍以在警局工作为荣。母黄廖仲好（卢宛茵）知命乐天，以作“妈打”为人生目标，但欠奉“妈打”之精明。蒂妹黄菲（黎海珊）为军装女警，为人冒失不整齐。三弟黄发（郑敬基）为科大学生，生于女权至上之家，故羡慕表哥廖通泰（吴镇宇），泰业货车运输，幼丧母，外表粗豪不羁，为人重情义，泰与蒂为先天性冤家。泰父廖仲德（秦煌）为警署饭堂老板，做事没计划，属男人五十戆居居之辈。景契女林凤琪（翁慧德）为任性大女人，与男友刘青山（欧阳震华）同居，山被泰耻笑为有被虐狂之癖男人，常教唆山与琪对抗，故琪及蒂联袂对付泰。及后，泰爱上十全十美之警花郑月英（翁杏兰），琪及蒂诸多破坏，泰与蒂斗气之余，始发觉所爱竟是对方……若是真的，等进了城，换了银子分一半给老汉。"On the way back, nothing, is the sea, Liu Guiduo deliberately avoid other ships. Only once when I stopped to change the oil filter element, I saw a ship from a distance with no national flag and no ship number. I left after more than 20 minutes. Many people said it was a pirate ship. Fishing boats have little money and pirates are not interested. The sea is different from the land. You can't help it. Just a boat is floating, you can't get rid of it, and there is no way to escape. "If a license decision is made, a qualification certificate shall be issued and served to the applicant within 10 days from the date of making the decision; If the license is not granted, a decision of not granting the license shall be issued and the reasons shall be stated.Events replace the work that could only be performed by the scheduled tasks of the operating system, and MySQL's event scheduler can be accurate to one task per second, while the scheduled tasks of the operating system (such as CRON under Linux or task planning under Windows) can only be accurate to one task per minute.