void Line(unsigned char s_x,unsigned char s_y,unsigned char e_x,unsigned char e_y) { char Offset_x,Offset_y,Offset_k = 0; char Err_d = 1; if(s_y>e_y) { Offset_x = s_x; s_x = e_x; e_x = Offset_x; Offset_x = s_y; }