@@ -0,0 +1,617 @@
+package com.wallace.demo.app;%0A%0Aimport java.util.regex.Matcher;%0Aimport java.util.regex.Pattern;%0A%0A/**%0A * Created by Wallace on 2017/1/12.%0A */%0Apublic class RegexDemo %7B%0A    public RegexDemo() %7B%0A    %7D%0A%0A    public static void main(String%5B%5D args) %7B%0A        String str = %22test,1,2,3,%5C%22aaa$@=324,bbb=44,ccc=546%5C%22,%5C%22454,23,564%5C%22,%5C%22$@%5C%22,10.934,4534.43%22;%0A        System.out.println(str);%0A%0A        String regEx = %22%5C%22%5Ba-zA-Z0-9,=$@%5D+%5C%22%22;%0A        Pattern pattern = Pattern.compile(regEx);%0A        Matcher m = pattern.matcher(str);%0A        while(m.find())%7B%0A            System.out.println(%22@@@@@@@@@ %22 + m.group());%0A        %7D%0A    %7D%0A%7D%0A

add RegexDemo.java