看一个这个程序:
proceudre tform1.timer1timer(sender;tobject);
var
xx:integer;
yy:integer;
begin
xx:=xx+5;
yy:=random(image1.height);
image1.canvas.pen.color:=clblack;
imgae1.canvas.lineto(xx,yy);
end;
procedure tform1.button1click(sender:tobject);
begin
timer1.enabled:=not timer1.enabled;
end;
程序运行后,在image1上面不能够绘制图形,请问是什么原因?
proceudre tform1.timer1timer(sender;tobject);
var
xx:integer;
yy:integer;
begin
xx:=xx+5;
yy:=random(image1.height);
image1.canvas.pen.color:=clblack;
imgae1.canvas.lineto(xx,yy);
end;
procedure tform1.button1click(sender:tobject);
begin
timer1.enabled:=not timer1.enabled;
end;
程序运行后,在image1上面不能够绘制图形,请问是什么原因?
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货