The runtime throws an exception if a caller attempts to invoke an invalid operation.

如果调用者试图调用无效的操作，那么运行时将抛出异常。

youdao

For simplicity, we did not include error handling for cases such as an invalid operation called for the current state.

为了简单起见，我们并未包含处理对当前状态无效的操作调用等情况的错误处理。

youdao

For simplicity, we did not include error handling for cases such as an invalid operation called for the current state.

为了简单起见，我们并未包含处理对当前状态无效的操作调用等情况的错误处理。

youdao