there is no overloaded version of floattostr that can be called with this arguments
具体代码是
n:=0;
for i := 1 to stringgrid1.RowCount-1 do
begin
stringgrid1.cells[5,i]:=floattostr(xx[i+2+n]);//这里出现了上述问题
stringgrid1.cells[6,i]:=xx[i
+3
+n];
if stringgrid1.Cells[1,i] = stringgrid1.Cells[1,i+1] then;
n:=n+1;
if stringgrid1.Cells[1,i] =stringgrid1.Cells[1,i+1] then;
n:=n+2;
end;
什么情况啊

xx到底是什么类型？
stringgrid1.cells[5,i]:=
floattostr(xx[i+2+n]);
stringgrid1.cells[6,i]:=
xx[i+3+n];
这两句摆明就互相矛盾。

floattostr 这用错了