Symbols cannot be typed directly. You can use the Xunfei input method to insert them. The operation is as follows:

1. Place the cursor at the position where you want to insert the symbol. When the input method appears, click "symbol" .

2. In the list of symbols, select "Special" and click.

3. Click the up and down slider on the right to find the symbol you want to enter.

4. After clicking to select the symbol to be inserted, send it directly and it will be displayed on the page.