T query-动态构造SQ语旬 Query1. Close Queryl SQLClear Query1 SQL Add('select* from students') Query1 SQL Add(where dno=+edit 1. text +m) Query1.Open Select s from student where dno= d01 连续2个上引号代表字符串中的一个上引号字符 Query l SQL Add( update.) QueryExeC SOLTquery - 动态构造SQL语句 Query1.Close; Query1.SQL.Clear; Query1.SQL.Add('select * from students'); Query1.SQL.Add('where dno=''' +edit1.text +''''); Query1.Open; Query1.SQL.Add(`update …`); Query1.ExecSQL; Select * from student where dno= ` d01 ` 连续2个上引号代表字符串中的一个上引号字符