081

        097

        086

        try{

        092

        string=computeStirngNoBracket(string);

        077

        temp=matcher.group();

        054

        while(matcher.find()){

        091

        }else{

        079

        055

        089

        095

        string=string.substring(0，index)

        080

        }

        064

        053

        067

        DecimalFormatdecimalFormat=newDecimalFormat(format);

        Matchermatcher=null;

        076

        */

        096

        *@paramstring

        }

        062

        082

        /**

si  m  i  s  h  u  wu.  c  o  m

        056

        }

        Patternpattern=Patternpile(regex);

  052

        087

        }

        073

        058

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

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

        returne.getMessage();(未完待续。)

        084

        }catch(Exceptione){

        057

        index=string.indexOf(temp);

        }

        intindex=-1;

        *@return

        072

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

        }

        063

        }else{

        061

        *计算字符串四则运算表达式

        //循环计算所有括号里的表达式

        094

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

        083

        Stringtemp=““;

        060

        matcher=pattern.matcher(string);

        059

        071

        }catch(NumberFormatExceptione){

        075

        returns;

        publicstaticStringcomputeString(Stringstring){

        070

        s=decimalFormat.format(obj);

        s=numberFormat.format(obj);

        074

        069

        093

        078

        090

        //最后计算总的表达式结果

        088

        068

          computeStirngNoBracket(temp)

        065

        066

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

        NumberFormatnumberFormat=NumberFormat.getInstance();

        returnstring;

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

        085