It is not possible to type spaces directly in "QQ Dance", but you can use the computer input method to type space symbols.
Specific steps:
1. Download and install Sogou input method.
2. Use the Sogou input method to enter "v1d" where the space is to be entered, and then you can enter the space.
3. When v1 is entered, the character option will appear, and the d option is exactly a space.