📄 bcjq003.txt
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C++ Builder开发者:程序员之家
var how_many_ads = 3;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
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if (ad==1) {document.write(''+'');}
if (ad==2) {document.write(''+'');}
if (ad==3) {document.write(''+'');}
var marqueecontents=''+scroll_text+''
if (document.all)
document.write(''+marqueecontents+'')
function regenerate(){
window.location.reload()
}
function regenerate2(){
if (document.layers){
setTimeout("window.onresize=regenerate",450)
intializemarquee()
}
}
function intializemarquee(){
document.cmarquee01.document.cmarquee02.document.write(marqueecontents)
document.cmarquee01.document.cmarquee02.document.close()
thelength=document.cmarquee01.document.cmarquee02.document.height
scrollit()
}
function scrollit(){
if (document.cmarquee01.document.cmarquee02.top>=thelength*(-1)){
document.cmarquee01.document.cmarquee02.top-=speed
setTimeout("scrollit()",100)
}
else{
document.cmarquee01.document.cmarquee02.top=marqueeheight
scrollit()
}
}
window.onload=regenerate2
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编程技巧
BCB中派生VCL类及动态地创建控件
以生成一个TMemo的派生类及动态地创建该VCL控件为例。
Class TMemoEx : public TMemo
{
.
.
}
extern TMemoEx memoex;
Class TForm1 : Class TForm
{
public:
TMemoEx *MemoEx;
.
.
}
void _fastcall TForm1::FormShow(TObject *Sender)
{
MemoEx=new TMemoEx(this);
MemoEx->Parent=this;
.
.
}
总之,遵循以下步骤即可:
类定义;
extern TMemoEx memoex;
TMemoEx *MemoEx;
MemoEx=new TMemoEx(this);
MemoEx->Parent=this;
if (ad==1) {document.write(''+'');}
if (ad==2) {document.write(''+'');}
if (ad==3) {document.write(''+'');}
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2000年06月01日 站长:唐朝