In the chat bar, first press caps lock. Enter /C0/ Yes and a question mark. The c on the key is a letter and should be capitalized. 0 is not a letter. O is the number 0. Sometimes it can be omitted. Then enter a number key at will. You will find that /C0 in the chat bar is gone, and the number keys you pressed are gone, which means you have succeeded. Then cancel capitalization, switch back to the common input method, and type the desired word. Oh, it's colored, hehe. Different numbers have different colors. You can also get interesting patterns by adding some numbers. Try more. You can also write it in your signature.

C+ numbers, you mean those colorful words, as follows: When you speak, type /C0 1 (note that C should be capitalized). When you press 1 of /C0 1, you will find that /C0 1 in the input box has disappeared. At this time, if you type again, it will be the color you set when you publish. There are 20 colors to choose from. C02 light green /C03 black /C04 orange /C05 purple /C06 sky blue /C07 aromatic ice cream color /C08 brown /C09 gray