date型別結果如下所示datetime nowdatetime =datetime.now();
datetime datetime1 = datetime.newinstance(2015,3,1,13,26,0);
string datetimestring = '2016-3-1 pm14:38';
system.debug('通過初始化年月日時分秒得到的datetime,並轉換格式到:'+datetime1.format('yyyy-mm-dd hh:mm:ss'));
datetime1 = datetime1.adddays(1);
datetime1 = datetime1.addmonths(1);
datetime1 = datetime1.addyears(1);
datetime1 = datetime1.addhours(1);
datetime1 = datetime1.addminutes(1);
datetime1 = datetime1.addseconds(1);
date date1 =datetime1.date();
system.debug('datetime1對應的date為:'+date1.format());
date dategmt =datetime1.dategmt();
system.debug('datetime1對應的dategmt值為:'+dategmt.format());
integer year =datetime1.year();
integer yeargmt =datetime1.yeargmt();
integer month =datetime1.month();
integer monthgmt =datetime1.monthgmt();
integer day =datetime1.day();
integer daygmt =datetime1.daygmt();
integer dayofyear =datetime1.dayofyear();
integer dayofyeargmt =datetime1.dayofyeargmt();
integer hour =datetime1.hour();
integer hourgmt =datetime1.hourgmt();
integer minute =datetime1.minute();
integer minutegmt =datetime1.minutegmt();
integer second =datetime1.second();
integer secondgmt =datetime1.secondgmt();
system.debug('year:'+year+'\tyeargmt:'+yeargmt);
system.debug('month:'+month+'\tmonthgmt:'+monthgmt);
system.debug('day:'+day+'\tdaygmt:'+daygmt);
system.debug('hour:'+hour+'\thourgmt:'+hourgmt);
system.debug('minute:'+minute+'\tminutegmt:'+minutegmt);
system.debug('second:'+second+'\tsecondgmt:'+secondgmt);
system.debug('dayofyear:'+dayofyear+'\tdayofyeargmt:'+dayofyeargmt);
system.debug('轉成本地日期並以長日期型別顯示:'+datetime1.formatlong());
long timel =datetime1.gettime();
system.debug('轉成time型別的long型別顯示為:'+timel.format());
datetime datetime5 = datetime.newinstance(2016, 4 ,2);
system.debug('datetime1與datetime2是否同一天:'+datetime1.issameday(datetime5));
date型別結果如下所示date date2 =date.today();
system.debug('當前日期:'+date2.format());
date date3 = date.newinstance(2016, 3, 1);
string datestring = '2016-3-1';
date date4 =date.parse(datestring);
date date5 =date.valueof(datestring);
system.debug('通過newinstance例項化:'+date3.format());
system.debug('通過parse例項化:'+date4.format());
system.debug('通過valueof例項化' +date5.format());
date3 = date3.addmonths(1);
date3 = date3.adddays(1);
system.debug('date3的日期為:' +date3.format());
integer year1 =date3.year();
integer month1 =date3.month();
integer day1 =date3.day();
system.debug('year:'+year1);
system.debug('month:'+month1);
system.debug('day:'+day1);
integer dayofyear1 =date3.dayofyear();
system.debug('dayofyear :' +dayofyear1);
integer daysbetween = date3.daysbetween(date4);//
date4-date3
system.debug('date3和date4相差天數:'+daysbetween);
system.debug('date4和date5是否相同日期:'+date4.issameday(date5));
system.debug('date3和date4相差月數:'+date3.monthsbetween(date4));
system.debug('呼叫tostartofmonth執行值:'+date3.tostartofmonth().format());
system.debug('呼叫tostartofweek執行值:' + date3.tostartofweek().format());
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