如下图所示，HTTP请求是作为用户操作(单击链接、按钮等)的结果由浏览器发出的。

As the figure below shows, an HTTP request is issued by a browser as a result of a user's action (clicking on a link, button etc).

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解决办法：等这个表被修改，然后发出dml操作。

Solution: Wait for the table to be altered and then issue the DML operation.

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更进一步说，即便是有，也只有很少的验证器可以用多种语言(如英语、汉语、法语等)发出错误消息。

Furthermore, few validators, if any, render error messages in multiple languages (English, Chinese, French, and so on.).

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They do that by skiing really fast s gold medal skier skiing in front of him saying jump, turn right, so forth.

以非常快的速度滑雪,世界冠军在他前面滑着，and，having，the，world’,不停地发出，起跳，右转，等口令。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选