Properties can be used to change the behavior of a component at run time without making code changes.
属性用于在运行时更改组件行为，不用更改代码。
To change any "component" of the date or time, click on it with the mouse to highlight it, then use the up and down arrow keys on the keyboard to increase or decrease the value.
如果你想要修改日期或者时间，用鼠标点选使要修改的部分高亮显示，然后实用键盘的“上”“下”键来增加或减小数值。
You can set property and event values two different ways: specify them in the component class or change them at design time.
您有两种不同的方式可以设定属性和事件值：在元件类别中指定或在设计阶段变更。
You can set property and event values two different ways: specify them in the component class or change them at design time.
您有两种不同的方式可以设定属性和事件值：在元件类别中指定或在设计阶段变更。
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