//你错了 label1.Caption := formatdatetime('dd', strtodate(s1) -
strtodate(s));
//换成看看
label1.Caption := format('%f', [strtodate(s1) - strtodate(s)]);//formatdatetime函数用错地方了
strtodate(s));
//换成看看
label1.Caption := format('%f', [strtodate(s1) - strtodate(s)]);//formatdatetime函数用错地方了
//不是<TDate>
//知道了吧
~~~~~
j,j1:Extended;
begin
i := strtoint(edit1.text);
if i in [1..12] then begin
i1 := i + 1;
s := inttostr(i);
s1 := inttostr(i1);
if length(s) = 1 then s := '0' + s;
if length(s1) = 1 then s1 := '0' + s1;
s2 := formatdatetime('yyyy', date);
s := s2 + '-' + s + '-01';
if s1 = '13' then s1 := inttostr(strtoint(s2) + 1) + '-01-01'
else s1 := s2 + '-' + s1 + '-01';
j:=int(strtodate(s1));
j1:=int(strtodate(s));
label1.Caption :=floattostr(j-j1);
end;
试试这样!