向页面上放置第一个元素将会向页面上添加表单标签。
Dropping the first element onto the page will add the form tags to the page. The remaining elements must fall within these tags in order for this service to function properly.
开发者可以使用标准的表单标签，但是Facebook以隐含输入的方式加入了更多的参数。
Developers can use standard HTML forms, but Facebook adds more parameters in the form of hidden inputs.
标签后面加冒号。一些桌面程序和诸如Windows之类的操作系统建议在表单标签后面加冒号。
Colons at the end of labels UI guidelines for some desktop applications and operating systems such as Windows recommend adding colons at the end of form labels.
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