It has been solved, and I have encountered this problem. According to most online tutorials, what IOS does is a small piece of white, and Android is good. Later, I changed my plan. I copied characters directly instead of codes, copied a code on the Internet, and then converted it into unicode codes (U+E 1 1D to \ UE 165438+).

In addition, the menu name of WeChat official account can only have four Chinese characters after using emoticons.

Encyclopedia of Emoji Emoji Codes (Web link)

The icon on the right can be copied directly.