src/org/nutz/lang/Times.java
public static Calendar C(long ms) {
        Calendar c = Calendar.getInstance();
        c.setTimeInMillis(ms);
        return c;
    }
public static Calendar C(long ms) {
        Calendar c = Calendar.getInstance();
        c.setTimeInMillis(ms);
        return c;
    }
根据毫秒数得到时间

@param ms
时间的毫秒数
@return 时间