这些系结与输入系结的不同之处在于其代表下一层级的命令处理，亦即系结至已知命令以及其类别特有处理常式的动作。

These bindings differ from input bindings in that they represent the next level down of command processing - actions that are tied to known commands and class-specific handlers for them.

youdao

如果没有任何处理常式附加至这个事件，则不会处理这个命令的例外状况。

If no handler is attached to this event, the command's exception is unhandled.

youdao

如果没有任何处理常式附加至这个事件，则不会处理这个命令的例外状况。

If no handler is attached to this event, the command's exception is unhandled.

youdao