Yours is a copy, the actual type is ξ, and the effect is the same when used in QQ signature or game naming. Introduce several methods to you: 1. When the keyboard is open, hold down the Alt key, then press the numeric keypad 42670 and release the Alt key to type ξ (applicable to any input method or game).

2. You can also use the Sogou Pinyin input method. Press sogou shortcut key Shift+Ctrl+Z to open shortcut input, select' Greek/Latin' and type ξ.

You can also press V6 to enter V mode, scroll down to page 4 and select B, or enter ξ.

3. Intelligent ABC input method, press V6, and item 5 on page 2 is ξ.

4. Right-click the soft keyboard on the icon of Sogou Pinyin Input Method or Intelligent ABC Input Method, and select' Greek Letter', and a soft keyboard will appear on the screen. Hold down Shift and then press the G key, and you can type ξ Smart ABC, V6 soft keyboard.