Subject content, subject content, and subject content

Save the subject content, subject content, and subject content in three fields respectively.

Assume that the three fields are: Text, super_text, and sub_text.

1. Click "experssion" under the "labels" label in the attributes of the marked layer )"

2. Write the following expression in the pop-up "expression" window:
[Text] & "^{" & [super_text] & "}" & "_{" & [sub_text] & "}"

Where:

"<Sup>" & [super_text] & "</sup>"Indicates that the content in the super_text field is used as the cursor

"<Sub>" & [sub_text] & "</sub>"Indicates that the content in the sub_text field is used as the delimiter

From: http://www.higis.cn/index.php/category/gistricks/