public static String deleteZero(Object s) {
String result = s.toString();
if (result.indexOf(".") > 0) {
//去掉多余的0,如4.0
result = result.replaceAll("0+?$", "");
//最后一位是.则去掉,如4.
result = result.replaceAll("[.]$", "");
}
//最后返回4
return result;
}