Why are there spaces when I post a comment on my mobile phone in Space?

1. In the Pinyin input method, just switch from half-width to full-width. Just press the space button to build it and it won’t work. The input method must be in full-width state to be valid

2. Use Sogou Pinyin, press v1 and select d, and it will be OK. The first one is the simplest, but it must be The input method can only be input in the full-width state. Illustration of switching the full-width state: At the beginning, it is usually in the half-width state, shaped like a crescent moon.