For example, if a user selects one component and then holds down the shift key and selects another three, the method is called for each addition to the selection list.

例如，如果用户选择了一个组件，然后按住shift键并选择另外三个组件，则每次向选择列表中进行添加时，都会调用该方法。

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For example, if a user selects one component and then holds down the shift key and selects another three, the method is called for each addition to the selection list.

例如，如果用户选择了一个组件，然后按住shift键并选择另外三个组件，则每次向选择列表中进行添加时，都会调用该方法。

youdao