如果是问属性的话，在delphi帮助里面找tadoquery,点properties,就是该控件的所有属性.
在delphi有对它的描述:Description

Use TADOQuery to access one or more tables in a data store using SQL statements.

Retrieve data from tables in an ADO data store using SELECT statements. Perform actions on tables and other metadata objects in an ADO data store with statements like INSERT, DELETE, UPDATE, ALTER TABLE, and CREATE TABLE. Execute stored procedures.