javaScript特效--0，1数字下落

最新推荐文章于 2023-03-27 11:27:34 发布

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今天看js的特效，发现挺有趣的，下面就是实现0，1数字下落的代码，是copy的徐长伟老师《常用JavaScript特效》里的代码。

if (document.all){
Cols=8;
Cl=36;//Space's are included so real length is 48!
Cs=20;
Ts=14;
Tc='#008800';
Tc1='#00ff00';
MnS=10;
MxS=30;
I=Cs;
Sp=new Array();S=new Array();Y=new Array();
C=new Array();M=new Array();B=new Array();
RC=new Array();E=new Array();Tcc=new Array(0,1);
document.write("<div id='Container' style='position:absolute;top:0;left:-"+Cs+"'>");
document.write("<div style='position:relative'>");
for(i=0; i < Cols; i++){
  S[i]=I+=Cs;
  document.write("<div id='A' style='position:absolute;top:0;font-family:Arial;font-size:"
  +Ts+"px;left:"+S[i]+";width:"+Ts+"px;height:0px;color:"+Tc+";visibility:hidden'></div>");
}
document.write("</div></div>");

for(j=0; j < Cols; j++){
  RC[j]=1+Math.round(Math.random()*Cl);
  Y[j]=0;
  Sp[j]=Math.round(MnS+Math.random()*MxS);
  for(i=0; i < RC[j]; i++){
    B[i]='';
    C[i]=Math.round(Math.random()*1)+' ';
    M[j]=B[0]+=C[i];
   }
}
function Cycle(){
Container.style.top=window.document.body.scrollTop;
for (i=0; i < Cols; i++){
  var r = Math.floor(Math.random()*Tcc.length);
  E[i] = '<font color='+Tc1+'>'+Tcc[r]+'</font>';
  Y[i]+=Sp[i];

  if (Y[i] > window.document.body.clientHeight){
    for(i2=0; i2 < Cols; i2++){
     RC[i2]=1+Math.round(Math.random()*Cl);
     for(i3=0; i3 < RC[i2]; i3++){
      B[i3]='';
      C[i3]=Math.round(Math.random()*1)+' ';
      C[Math.floor(Math.random()*i2)]=' '+' ';
      M[i]=B[0]+=C[i3];
      Y[i]=-Ts*M[i].length/1.5;
      A[i].style.visibility='visible';
     }
     Sp[i]=Math.round(MnS+Math.random()*MxS);
    }
  }
  A[i].style.top=Y[i];
  A[i].innerHTML=M[i]+' '+E[i]+' ';
}
setTimeout('Cycle()',20)
}
Cycle();
}