Flex的日期增加计算

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?/**?
  
  
?
  
  
?*?时间计算?
  
  
?*?@param???
  
  
?*??????datepart????时间增加的形式?
  
  
?*?@param???
  
  
?*??????number??????时间增加的数量?
  
  
?*?@param???
  
  
?*??????date????????预增加的时间?
  
  
?*?@return??
  
  
?*??????_returnDate?增加后的时间?
  
  
?*/?
  
  
private?function?dateAdd(datepart:String?=?"",?number:Number?=?0,?date:Date?=?null):Date??
  
  
{?
  
  
????if?(date?==?null)??
  
  
????{?
  
  
????????date?=?new?Date();?
  
  
????}?
  
  
?????
  
  
????var?_returnDate:Date?=?new?Date(date.time);;?
  
  
????var?_type?=?datepart.toLowerCase();?
  
  
????switch?(_type)?
  
  
????{?
  
  
????????case?"fullyear":?
  
  
????????case?"month":?
  
  
????????case?"date":?
  
  
????????case?"hours":?
  
  
????????case?"minutes":?
  
  
????????case?"seconds":?
  
  
????????case?"milliseconds":?
  
  
????????????_returnDate[_type]?+=?number;?
  
  
????????????break;?
  
  
????????default:?
  
  
????????????break;?
  
  
????}?
  
  
????return?_returnDate;?
  
  
}?
  
  
??
  
  
/**?
  
  
?*?日期比较（按天比较）?
  
  
?*?
  
  
?*??@param?date1?
  
  
?*??@param?date2?
  
  
?*??
  
  
?*??@return?
  
  
?*??如果第一个参数的时间比第二个大，返回1，小返回-1，相等返回0?
  
  
?*?*/?
  
  
private?function?dateCompare(date1:Date,?date2:Date):int?
  
  
{?
  
  
????if(date1.fullYear?>?date2.fullYear)?
  
  
????{?
  
  
????????return?1;?
  
  
????}?
  
  
????else?if(date1.fullYear?<?date2.fullYear)?
  
  
????{?
  
  
????????return?-1;?
  
  
????}?
  
  
?????
  
  
????if(date1.month?>?date2.month)?
  
  
????{?
  
  
????????return?1;?
  
  
????}?
  
  
????else?if(date1.month?<?date2.month)?
  
  
????{?
  
  
????????return?-1;?
  
  
????}?
  
  
?????
  
  
????if(date1.date?>?date2.date)?
  
  
????{?
  
  
????????return?1;?
  
  
????}?
  
  
????else?if(date1.date?<?date2.date)?
  
  
????{?
  
  
????????return?-1;?
  
  
????}?
  
  
?????
  
  
????return?0;???????//相等?
  
  
}?
  
  
??
  
  
/**?
  
  
?*?增加秒数?
  
  
?*??
  
  
?*??@param?data?
  
  
?*??@param?count?
  
  
?*??
  
  
?*??@return?
  
  
?*??????00:00:00形式字符串?
  
  
?*/?
  
  
private?function?secondsAdd(date:Date,?count:int):String?
  
  
{?
  
  
????var?_newDate:Date?=?dateAdd("seconds",count,date);?
  
  
?????
  
  
????//取整?
  
  
????var?_h:int?=?_newDate.getHours()>>0;?
  
  
????var?_min:int?=?_newDate.getMinutes()>>0;?
  
  
????var?_s:int?=?_newDate.getSeconds()>>0;?
  
  
?????
  
  
????//补0?
  
  
????var?_hh:String?=?_h>9?String(_h):("0"+_h);?
  
  
????var?_minMin:String?=?_min>9?String(_min):("0"+_min);?
  
  
????var?_ss:String?=?_s>9?String(_s):("0"+_s);?
  
  
?????
  
  
????return?_hh+":"+_minMin+":"+_ss;?
  
  
}?
  
  
??
  
  
/**?
  
  
?*?两个日期之间相差的分钟数?
  
  
?*??
  
  
?*??@param??
  
  
?*??dataStr?????????2012-01-02?04:33:10?
  
  
?*??@param??
  
  
?*??nextDataStr?????2012-01-02?15:35:10?
  
  
?*???
  
  
?*??@return??_count?数据的个数?
  
  
?*/?
  
  
private?function?getCount(dataStr:String,?nextDataStr:String):int?
  
  
{?
  
  
????//正则表达式，将时间数字存入数组。?
  
  
????var?_pattern:RegExp?=?/-|:|?/;?
  
  
????var?_timeArr:Array?=?dataStr.split(_pattern);?
  
  
????var?_nextTimeArr:Array?=?nextDataStr.split(_pattern);?
  
  
?????
  
  
????var?_date:Date?=?new?Date(_timeArr[0],_timeArr[1],_timeArr[2],_timeArr[3],_timeArr[4],_timeArr[5]);?
  
  
????var?_nextDate:Date?=?new?Date(_nextTimeArr[0],_nextTimeArr[1],_nextTimeArr[2],_nextTimeArr[3],_nextTimeArr[4],_nextTimeArr[5]);?
  
  
?????
  
  
????var?_count:int?=?(((Date.UTC(_nextTimeArr[0],_nextTimeArr[5])-Date.UTC(_timeArr[0],_timeArr[5]))/1000/60)+0.5)>>0;?
  
  
??
  
  
????return?_count;?
  
  
}?