This special symbol can be typed on both the mobile phone and the computer. The method is as follows:

① Input on the mobile phone: directly enter: shangbiao ? in the input box, as shown below

②For the computer:

On the keyboard, press the "Alt" key with your left hand and the "8482" number with your right hand.

After the operation is completed, you can see that the "?" special symbol was successfully entered on the keyboard.

Note: Generally, such special symbols ☆ or ≌ can be found by typing "v1" in the Chinese status input box and then turning the page.