I don't know much about chinese (according to your profile you are Chinese) keyboard layouts, if they have any additional symbols for typing in other languages, but I can suggest you adding Russian keyboard layout in your operating system and switching between them to type in Chinese or in Russian.

The actual position of letters and other symbols you can find on the internet, because I can't add pictures to comments here.

好吧，我从度娘里搜到了。在这分享吧。

在俄语输入法下，用shift+7出来就是？

怎么没有人回复呢。大家没有遇到过这个问题吗