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Click on the green box of "Manaka" (the one-day ticket in the above picture is now updated to the 24-hour subway ticket, see the following subway ticket introduction for details)美纱绪和市川逐渐擦肩而过。身体是相连的，但是心却无法相连的两个人的将来…因而，一旦发现了广域无疆的美洲，人与地的矛盾重新回到了古典时代地比人多的情况，奴隶制再度兴起，无论是葡萄牙西班牙还是英国以及美利坚都顺应了这个潮流，黑人兄弟们也就开始遭殃，直至第十六任美国总统林肯才还给了黑人兄弟们自由，那已经是快三百年后的事情了。Over the years, I have traveled tens of thousands of kilometers on donkeys, horses and motorcycles, and have interviewed many such stories about border protection.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.