When you select a menu item, the corresponding target is invoked, and the source data is transferred to it.

当您选择一个菜单项时，相应的目标就会被激活，而源数据就会传递给它了。

youdao

When you select a menu item, the corresponding target is invoked, and the source data is transferred to it.

当您选择一个菜单项时，相应的目标就会被激活，而源数据就会传递给它了。

youdao