var
sSql:string;
ssql:='update student set sloss=0,cardno='''+cardno.Text+''',password='''+password.Text+''',[money]='''+money.Text+''' where studentno='''+studentno.Text+'''
sSql:string;
ssql:='update student set sloss=0,cardno='''+cardno.Text+''',password='''+password.Text+''',[money]='''+money.Text+''' where studentno='''+studentno.Text+'''
先把记录select出来
再edit
再用field.asfloating运算
再post
2的某个解决方案
isint:boolean;
isint:=flase;
try
strtoint(edit1.text);
isint:=true;
except
end;
if not isint then
begin
eidt1.setfocus;
exit;
end;
再检测edit2 select * from where (convert(int,week2)>='+''''+edit1.text+''') and (convert(int,week1)<='+''''+edit1.text+''')