When that happens, the plot method is called with the currently selected value, and the graph is updated.

此时，以当前选中的值调用plot方法，图形即被更新。

youdao

When that happens, the plot method is called with the currently selected value, and the graph is updated.

此时，以当前选中的值调用plot方法，图形即被更新。

youdao