***start input.asp***
<% thenum= request("num") %>
<style type="text/css">
<!--
.trees { border-color: black black black #666666; padding-left: 12px; border-style: solid; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 3px; margin-top: 2px; margin-bottom: 2px}
-->
</style>
<div class = "trees" id="tree<%=thenum%>"><%=thenum%><span id="follow<%=thenum%>"><iframe name = "agent<%=thenum%>" style="display:none" src="prime_number.asp?num=<%=thenum%>"></iframe></span></div>
***end input.asp***
***start prime_number.asp***
<%
IsPrimeNumber = false
thenum = request("num")
if thenum = 2 or thenum = 1 then
IsPrimeNumber = false
else
for i = 2 to thenum -1
if thenum / i = int(thenum / i) then IsPrimeNumber = true: m = i : exit for
next
end if
if IsPrimeNumber = false then %>
<script>
var htmltext = '<div class = "trees"><%=thenum%>*</div>';
parent.follow<%=thenum%>.innerHTML = htmltext;
</script>
<%else%>
<%k = thenum / m%>
<script>
var htmltext = '<div class = "trees"><%=m%>*</div><div class = "trees" id="tree<%=k%>"><%=k%><span id="follow<%=k%>"><iframe name = "agent<%=k%>" style="display:none" src="prime_number.asp?num=<%=k%>"></iframe></span></div>';
parent.follow<%=thenum%>.innerHTML = htmltext;
</script>
<%end if%>
***end prime_number.asp***
算法应用：分布多线程树读取
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