116、骂战  (第2/3页)
r>    *@paramformat格式化字符串    037    *@return    038    */    039    publicstaticStringformatNumber(Objectobj,Stringformat){    040    if(obj==null)    041    return““;    042    043    Strings=String.valueOf(obj);    044    if(format==null||““.equals(format.trim())){    045    format=“.00“;    046    }    047    try{    048    if(objinstanceofDouble||objinstanceofFloat){    049    if(format.contains(“%“)){    050    NumberFormatnumberFormat=NumberFormat.getPercentInstance();    051    s=numberFormat.format(obj);    052    }else{    053    DecimalFormatdecimalFormat=newDecimalFormat(format);    054    s=decimalFormat.format(obj);    055    }    056    }else{    057    NumberFormatnumberFormat=NumberFormat.getInstance();    058    s=numberFormat.format(obj);    059    }    060    }catch(Exceptione){    061    }    062    returns;    063    }    064    065    /**    066    *计算字符串四则运算表达式    067    *@paramstring    068    *@return
				
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