some typos and fix a bug problem solution

[tianyu-su]

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[cherie-wuyajun]

这是来自QQ邮箱的自动回复邮件。您好，邮件已收到，我将会尽快给您回复。

[fyyzkd]

这是来自QQ邮箱的假期自动回复邮件。你好，我最近正在休假中，无法亲自回复你的邮件。我将在假期结束后，尽快给你回复。

[xiaosisong]

我已经收到了，会尽快查看的，谢谢

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.