由于使用 onPush 进行更改检测，因此在更改输入或处理已侦听的事件时会运行.

Because with onPush change detection runs when an input is changed or when an event that was listened to was handled.

如果更改 this.testData ，则需要运行更改检测以更新 [value] ="testData" 绑定.如果发生这种情况，将对< p-dataTable> 运行更改检测，因为其输入已更改.

If you change this.testData, then change detection needs to run to update the [value]="testData" binding. If that happens, change detection will run for <p-dataTable> because its input changed.

App 上没有更改的输入，因此没有更改检测.

There is no input on App that has changed, therefore no change detection.

您可以使用 ChangeDetectorRef.markForCheck()

> 柱塞示例