转换时间对象和字符串对象&添加时间

*基本思路,将字符串时间转化为时间对象,通过毫秒数来加减时间,然后在转化为字符串输出

              //转化字符时间yy-mm-dd hh:mm:ss 为时间对象   使用split进行字符串的分割,取值并创建新的时间对象
               var toDate = function(strDateTime){
                   var strDateTimes = strDateTime.split(' ');
                   var strDate = strDateTimes[0].split('-');
                   var year = Number(strDate[0]);
                   var month = Number(strDate[1]) - 1;
                   var day = Number(strDate[2]);

                   var strTime = strDateTimes[1].split(':');
                   var hour = Number(strTime[0]);
                   var minute = Number(strTime[1]);
                   var secend = Number(strTime[2]);
                   return new Date(year, month, day, hour, minute, secend);
                }

            //转化为字符时间yy-mm-dd hh:mm:ss 通过时间对象的方法获取时分秒,使用字符串进行拼接返回字符串
           var toStrDate = function(objDate){
               var year = objDate.getFullYear();
               var month = objDate.getMonth()+1;
               var day = objDate.getDate();
               var hour = objDate.getHours();
               var minute = objDate.getMinutes();
               var second = objDate.getSeconds();
               if(month<10){
                   month = "0"+month;
               }
               if(day<10){
                   day = "0"+day;
               }
               if(hour<10){
                   hour = "0"+hour;
               }
               if(minute<10){
                   minute = "0"+minute;
               }
               if(second<10){
                   second = "0"+second;
               }
               return year+"-"+month+"-"+day+" "+hour+":"+minute+":"+second
           }
           /*添加时间

*strTime为字符串时间格式yy-mm-dd hh:mm:ss 或时间对象

*如果未输入则默认为当前时间

*addTime为秒数

var addDate = function(strTime,addTime){

var addTime = Number(addTime)*1000;

var newDate = new Date();

//toDate

if(typeof(strTime)=="object"){

newDate = strTime;

}else if(typeof(strTime)=="string"){

var strDateTimes = strTime.split(" ");//年月日

var strDate = strDateTimes[0].split("-");

　　　　　 var year = Number(strDate[0]);

　　　　　 var month = Number(strDate[1])-1;

var day = Number(strDate[2]);

var strTime = strDateTimes[1].split(":");//时分秒

var hour = Number(strTime[0]);

var minute = Number(strTime[1]);

var second = Number(strTime[2]);

newDate = new Date(year,month,day,hour,minute,second);

}else{

alert("输入的格式不正确")

}

//添加时间

var addDate = newDate+addTime;

//toStr

var new_year = addDate.getFullYear();

var new_month = addDate.getMonth()+1;

var new_day = addDate.getDate();

var new_hour = addDate.getHours();

var new_minute = addDate.getMinutes();

var new_seconds = addDate.getSeconds();

if(new_year<10){

new_year = "0"+new_year;

};

if(new_month<10){

new_month = "0"+new_month;

};

if(new_day<10){

new_day = "0"+new_day;

};

if(new_hour<10){

new_hour = "0"+new_hour;

};

if(new_minute<10){

new_minute = "0"+new_minute;

};

if(new_second<10){

new_second = "0"+new_second;

};

return new_year+"年"+"-"+new_month+"月"+"-"+new_day+"日"+" "+new_hour+"时"+":"+new_minute+"分"+":"+new_second+"秒"
};