各位大哥我是个新手,请问在delphi里怎么判断回车符呀
我想在一个字符串里找出回车符来
请帮帮忙吧
我想在一个字符串里找出回车符来
请帮帮忙吧
解决方案 »
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可以使用pos()语句判断.
for i:= 1 to length(s) do
if s=#13 or s=#10 then ...
while p^<>#13 do
nextchar(p);
for i:= 1 to length(s) do
if s[i]=#13 or s[i]=#10 then ...
var
str : string;
i : integer;
begin
str:=memo1.Text;
for i:=1 to length(str) do
if str[i]=#13 then
showmessage(inttostr(i));
end;
key是word型时 key=13
key是char型时 key=#13
vk_LButton = $01;
vk_RButton = $02;
vk_Cancel = $03;
vk_MButton = $04; { NOT contiguous with L & RBUTTON }
vk_Back = $08;
vk_Tab = $09;
vk_Clear = $0C;
vk_Return = $0D;
vk_Shift = $10;
vk_Control = $11;
vk_Menu = $12;
vk_Pause = $13;
vk_Capital = $14;
vk_Escape = $1B;
vk_Space = $20;
vk_Prior = $21;
vk_Next = $22;
vk_End = $23;
vk_Home = $24;
vk_Left = $25;
vk_Up = $26;
vk_Right = $27;
vk_Down = $28;
vk_Select = $29;
vk_Print = $2A;
vk_Execute = $2B;
vk_SnapShot = $2C;
vk_Copy = $2C not used by keyboards }
vk_Insert = $2D;
vk_Delete = $2E;
vk_Help = $2F;
vk_A thru vk_Z are the same as their ASCII equivalents: 'A' thru 'Z' }
vk_0 thru vk_9 are the same as their ASCII equivalents: '0' thru '9' }
vk_NumPad0 = $60;
vk_NumPad1 = $61;
vk_NumPad2 = $62;
vk_NumPad3 = $63;
vk_NumPad4 = $64;
vk_NumPad5 = $65;
vk_NumPad6 = $66;
vk_NumPad7 = $67;
vk_NumPad8 = $68;
vk_NumPad9 = $69;
vk_Multiply = $6A;
vk_Add = $6B;
vk_Separator = $6C;
vk_Subtract = $6D;
vk_Decimal = $6E;
vk_Divide = $6F;
vk_F1 = $70;
vk_F2 = $71;
vk_F3 = $72;
vk_F4 = $73;
vk_F5 = $74;
vk_F6 = $75;
vk_F7 = $76;
vk_F8 = $77;
vk_F9 = $78;
vk_F10 = $79;
vk_F11 = $7A;
vk_F12 = $7B;
vk_F13 = $7C;
vk_F14 = $7D;
vk_F15 = $7E;
vk_F16 = $7F;
vk_F17 = $80;
vk_F18 = $81;
vk_F19 = $82;
vk_F20 = $83;
vk_F21 = $84;
vk_F22 = $85;
vk_F23 = $86;
vk_F24 = $87;
vk_NumLock = $90;
vk_Scroll = $91; Tab是#9
回车是#13,换行是#10等?
if key=vk_return then
begin
...
end;