OnKeyUp :Fires when the user releases a key.
当释放键盘时触发交互行为。
OnKeyUp and validate are the functions that define the logic of the widget.
onKeyUp和validate是两个函数，定义了小部件的逻辑。
This is actually superior to the onkeyup type of event shown in the HTML input in Listing 1.
这确实要比清单1中HTMLinput所用的onkeyup事件类型更高级。
file, implement the following JavaScript function. It is bound to the onkeyup() event of the class_activity input field.
它一定是 class_activity输入字段的onkeyup()事件。
The dojoAttachEvent declaration will cause the onkeyup events (coming from the input node) to trigger the onKeyUp widget's method calls.
dojoAttachEvent声明会导致onkeyup事件（来自输入节点）触发 onKeyUp小部件的方法调用。
The dojoAttachEvent declaration will cause the onkeyup events (coming from the input node) to trigger the onKeyUp widget's method calls.
dojoAttachEvent声明会导致onkeyup事件（来自输入节点）触发 onKeyUp小部件的方法调用。
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