var sel_str,bh_str: string; i,j,i_pos:integer; begin sel_str:=treeview1.Selected.Text; //执行结果sel_str:='43060001市局机关' sel_str:=copy(sel_str,1,10); //执行结果sel_str:='43060001市局'
for i := 1 to Length(treeview1.Selected.Text)-1 do for j:=0 to 9 do begin if inttostr(j)=sel_str[i] then i_pos:=i else begin if j=9 then break; end; end; //执行循环的结果 i_pos:=8 bh_str:=copy(sel_str,1,i_pos); //执行结果居然是bh_str='' and sel_str='',这让我想不通!end; 这个代码有什么问题吗?请高手指教!
function TForm1.GetNumeric(s: string): string; var i:integer; begin Result:=''; for i:=1 to Length(s) do if s[i] in ['0','1','2','3','4','5','6','7','8','9'] then Result:=Result+s[i]; end;
sel_str,bh_str: string;
i,j,i_pos:integer;
begin
sel_str:=treeview1.Selected.Text; //执行结果sel_str:='43060001市局机关'
sel_str:=copy(sel_str,1,10); //执行结果sel_str:='43060001市局'
for i := 1 to Length(treeview1.Selected.Text)-1 do
for j:=0 to 9 do
begin
if inttostr(j)=sel_str[i] then i_pos:=i
else
begin
if j=9 then break;
end;
end;
//执行循环的结果 i_pos:=8 bh_str:=copy(sel_str,1,i_pos); //执行结果居然是bh_str='' and sel_str='',这让我想不通!end;
这个代码有什么问题吗?请高手指教!
var i:integer;
begin
Result:='';
for i:=1 to Length(s) do
if s[i] in ['0','1','2','3','4','5','6','7','8','9'] then Result:=Result+s[i];
end;