QUERY1.ACTIVE:=false;
query1.sql.strings[0]:='select * '
query1.sql.strings[1]:='from xsb'
query1.sql.strings[2]:='order by bh'
query1.acitve:=True;
query1.sql.strings[0]:='select * '
query1.sql.strings[1]:='from xsb'
query1.sql.strings[2]:='order by bh'
query1.acitve:=True;
比如说: query1.close;
query1.sql.add('select * form table1');
query1.sql.add('where 'fieldname'=; fn and');
Query1.ParamByName('fn').AsString:= 'hehe';现在我要删除第3条语句添加的 ' and' 应该怎么实现?????