query1.close;
query1.sql.clear;
query1.sql.add('select * from you_tablename where you_fieldname like :you_value');
query1.parambyname('you_value').asstring:=edit1.text;
try
query1.open;
except
query1.execsql;
end;
if query1.recordcount=0 then showmessage('无')
可以吗??
query1.sql.clear;
query1.sql.add('select * from you_tablename where you_fieldname like :you_value');
query1.parambyname('you_value').asstring:=edit1.text;
try
query1.open;
except
query1.execsql;
end;
if query1.recordcount=0 then showmessage('无')
可以吗??
解决方案 »
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