There are two ways:
First, anytime, anywhere with:
\ usepackage {CJK} beginning% on the article \ the begin {UTF8 CJK} {} {} gbsn % when using the insert Chinese here are Chinese \ End {CJK}
Second, the global settings:
\ DocumentClass [ the UTF8 ] {} ctexart % corresponds to the overall pattern of selected Chinese
Both methods have advantages and disadvantages, I was biased in favor of the first, but if you have the full text of Chinese words, or easy to second.
PS: night encountered a pit, is previewed in VScode in PDF, can not be opened in the browser, it can only be turned off, or else an error.