VK_LEFT Left Arrow key
VK_UP Up Arrow key
VK_RIGHT Right Arrow key
VK_DOWN Down Arrow key if not (key in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', char(VK_BACK),
char(VK_RETURN), char(VK_LEFT), char(VK_UP), char(VK_RIGHT), char(VK_DOWN)]) then
key := #0;
VK_UP Up Arrow key
VK_RIGHT Right Arrow key
VK_DOWN Down Arrow key if not (key in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', char(VK_BACK),
char(VK_RETURN), char(VK_LEFT), char(VK_UP), char(VK_RIGHT), char(VK_DOWN)]) then
key := #0;
left 37
right 39
up 38
down 40
试一试
VK吗:
Up:VK_UP;
Down:VK_DOWN;
Left:VK_LEFT;
Right:VK_RIGHT;
VK_UP = 38;
VK_RIGHT = 39;
VK_DOWN = 40;
VK_LEFT = 37;
VK_UP = 38;
VK_RIGHT = 39;
VK_DOWN = 40;