动画演示效果：
码贴出来，省得大家去下载原文件！
帧上的ＡＳ：
display="0";
stop();
functiongetdigit(digit){
if(clear){
clear=false;
decimal=false;
display="0";
}
if(length(display)<13){
if(display=="0"anddigit!="."){
display=digit;
}else{
display=display+digit;
}
}
}
functiongetoperator(sign){
if(operator=="+"){
display=Number(operand)+Number(display);
symbol=operator;
}
if(operator=="-"){
display=operand-display;
symbol=operator;
}
if(operator=="*"){
display=operand*display;
symbol="x";
}
if(operator=="/"){
display=operand/display;
symbol=operator;
}
operator="=";
clear=true;
symbol="";
decimal="false";
if(sign!=null){
operator=sign;
if(operator=="*"){
symbol="x";
}else{symbol=operator;}
operand=display;
}
}
按钮上的：
＂１＂
on(release,keyPress"1"){getdigit("1")}
＂２＂
on(release,keyPress"2"){getdigit("2")}
＂３＂，＂４＂，＂５＂，．．．．．．，＂０＂同上！
＂+＂
on(release,keyPress"+"){getoperator("+")}
＂－＂
on(release,keyPress"－"){getoperator("－")}
＂Ｘ＂，＂/＂同上．
＂Ｍ+＂
on(release){
memory=memory+Number(display);
symbol="";
mem="M+";
}
＂ＭＲ＂
on(release){display=memory;}
＂ＭＣ＂
on(release){
memory=0;mem="";display="0";
operator="";operand=false;clear=false;
decimal=false;
}
＂Ｃ＂
同上．
