src/org/nutz/lang/Times.java
public static long dayDiffCurr(String before) {
        Date currDate = parseq(DF_DATE, sD(now()));
        Date beforeDate = parseq(DF_DATE, before);
        return (currDate.getTime() - beforeDate.getTime()) / 86400000;

    }
public static long dayDiffCurr(String before) {
        Date currDate = parseq(DF_DATE, sD(now()));
        Date beforeDate = parseq(DF_DATE, before);
        return (currDate.getTime() - beforeDate.getTime()) / 86400000;

    }
比较指定日期与当前日期的天差

@param before
指定的前应日期,格式yyyy-MM-dd
@return 天差