He is rebuffed with a rude error message box shown in Figure 17-3. Trying to rename an open file is a sharing violation, and the operating system rejects it with a patronizing error message box.

• 他没有首先关闭文档，他怎么知道? 试图重新命名一个打开的文档会产生共享冲突，操作系统用一个蛮横无礼的错误消息对话框拒绝了用户。