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String str = "$GPICI,1234567,2013201,01891,2,10,1,E,0*F3"+"\n";
Pattern p = Pattern.compile("\\$[A-Z]{5},(\\d{7}),(\\d*),(\\d*),([0-7]),(\\d*),([1-4]),([EN]),(\\d*)\\*([0-9A-F]{2})\\s+");
Matcher m = p.matcher(str);
if(m.find()){
System.out.println(m.group(5));
}
感觉很深奥