<%@ page contentType="text/html" language="java"
import="java.util.regex.*" pageEncoding="utf-8"%>
<%!public double getPriceSum(String input) {
Pattern pattern;
Matcher matcher;
String regex = "-?[0-9][0-9]*[.]?[0-9]*";
pattern = Pattern.compile(regex);
matcher = pattern.matcher(input);
double sum = 0;
while (matcher.find()) {
String str = matcher.group();
sum += Double.parseDouble(str);
}
return sum;
}%>
<html>
<body bgcolor=cyan>
<p style="font-family:黑体;font-size:20">
<br>我的菜单:</br>
<%
String str = "麻辣豆腐：20.6元，红烧肉：20.9元";
%>
<br><%=str%></br> <br> <b><i>消费总和:<%=getPriceSum(str)%></i> </b>
</br> <br>我的菜单2：</br>
<%
str = "剁椒鱼头：62.9元，鸭：200元，虾：289元";
%>
<br><%=str%></br> <br> <b><i>消费总和:<%=getPriceSum(str)%></i> </b></br>
</p>
</body>
</html>
