The sample provides three simple use cases: add event, list events and edit event.

该示例提供了三个简单的用例：添加事件、列出事件和编辑事件。

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WebCal just uses text input fields on the login, registration, and show/edit event forms.

WebCal 正好在登录、注册和显示／编辑活动表单上使用文本输入字段。

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Listing 8 updates Listing 3 and adds edit and delete links to each event.

清单8在清单3的基础上增加了事件的编辑和删除链接。

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