}

        s=numberFormat.format(obj);

        058

        while(pattern.matcher(string).find()){

        try{

        string=computeStirngNoBracket(string);

        }catch(Exceptione){

        }catch(NumberFormatExceptione){

        091

        }

        //最后计算总的表达式结果

        NumberFormatnumberFormat=NumberFormat.getInstance();

        086

        if(!Pattern.matches(regexCheck，string))

        080

        094

        090

          computeStirngNoBracket(temp)

        075

        064

        059

        Patternpattern=Patternpile(regex);

        065

        057

        }

        }

        078

        s=decimalFormat.format(obj);

        string=string.substring(0，index)

        066

        053

        Stringregex=“\\([\\d\\.\\  \\-\\*/]  \\)“;//提取括号表达式

        077

        073

        while(matcher.find()){

        StringregexCheck=“[\\(\\)\\d\\  \\-\\*/\\.]*“;//是否是合法的表达式

        076

        }

        095

        068

        060

        }else{

        084

        074

        088

        matcher=pattern.matcher(string);

        }

        087

        097

        intindex=-1;

si  m  i  s  h  u  wu.  c  o  m

        055

        070

        096

        062

        082

        returns;

        079

        */

        DecimalFormatdecimalFormat=newDecimalFormat(format);

        089

        085

        temp=matcher.group();

        083

        //循环计算所有括号里的表达式

        093

  052

        *@return

        *计算字符串四则运算表达式

        }else{

        returne.getMessage();(未完待续。)

        069

        /**

        081

        index=string.indexOf(temp);

        Stringtemp=““;

        *@paramstring

          string.substring(index  temp.length());

        063

        067

        092

        returnstring;

        publicstaticStringcomputeString(Stringstring){

        071

        072

        056

        string=string.replaceAll(“\\s“，““);//去除空格

        054

        Matchermatcher=null;

        061