Type "? |?" There are four symbols and four methods:

Hold down the Shift key and press \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ \ \\ \\ \

2. Enter "Shu" in Pinyin input mode and find "|?" ; Enter "hhl" in the state of "five strokes" input method;

3. "Yi" itself is a Chinese character, pronunciation: gǔn, meaning: up and down. Enter "gun" in Pinyin status, and find "|?" ;

4. In the "Soft Keyboard" of the input method, click the right mouse button to select "Special Symbol" and click "Three Keys".