
򣨷dwbody䣩

<script>

var price=prompt("۸");
var count=prompt("");
var pay=prompt("븶");
var total=price*count;
var change=pay-total;

var ssss="۸ "+price+"  "+count+" ܼ "+total+"  "+change;

alert(ssss);


</script>

ʽַ֡

 + - * /  (עҡȼַļӷ)


¿Σ

1ַת

parseInt()      ת
parseFloat()    תС

prompt()  صַ

parseFloat(prompt())


var price=parseFloat( prompt("۸"); )

2ϵ

> >= < <= == != === !==

ϵʽزֵ true false

3if

if(){ʱҪ}


if(){}else{}



if(1){1

}elseif(2){12

}elseif(){

}else{}



ܽ500,8



































