void printDatatime(TTime);
void showProperties(TTime);
void showFormatting(TTime);
void printDifferences(TTime,TTime);
void WaitForKey()
{
_LIT(KMsgPreAnykey,"Please any key");
console->Printf(KMsgPreAnykey);
console->Getch();}void printDatatime(TTime aTime)
{
TBuf<40> datetimeString;
_LIT(KFormat2,"%D%M%Y%/0%1%/1%2%/1%3%/3 %:0%H%:1%T%:2%S.%C%:3");
/*
经测试 %/0 没有起作用
%/1 是分隔符，把这个及%/2换成%/0 则没有分隔符了
关于 %/ 的说明:%/后要加上 0-3 表示4种分隔符
%:表示获取本地设置中的时间分隔符，紧跟一个0~3范围的数字来指定哪一个日期分隔符
*/
aTime.FormatL(datetimeString,KFormat2);
_LIT(KFormat3,"new date and time:%S \n");
console->Printf(KFormat3,&datetimeString);
}
void showProperties(TTime aTime)
{
TBuf<10> nameString;
_LIT(KFormat4,"%F%N");
aTime.FormatL(nameString,KFormat4); _LIT(KFormat5,"Days in month (%S) = %d\n");
console->Printf(KFormat5,&nameString
,aTime.DaysInMonth());
_LIT(KFormat6,"%E");
aTime.FormatL(nameString,KFormat6); _LIT(KFormat7,"Day number in year is %d \n");
console->Printf(KFormat7,aTime.DayNoInYear()); _LIT(KFormat8,"Day number in week=%d (%S) \n");
console->Printf(KFormat8,aTime.DayNoInWeek(),&nameString); _LIT(KFormat9,"Week number in year=%d\n");
console->Printf(KFormat9,aTime.WeekNoInYear()); _LIT(KFormat10,"counting fir full week as week 1,\nWeek number in year %d\n");
console->Printf(KFormat10,aTime.WeekNoInYear(EFirstFullWeek));
}
void showFormatting(TTime aTime)
{
_LIT(KTxt8,"Formatting the date and time\n");
console->Printf(KTxt8);
console->Getch();
TBuf<40> dateString;
/*
%E = 星期
%D = 日
%X = 后缀
%N = 月的描述
%Y = 年
%1,2,3 = 根据本地的设置显示第1/2/3个内容
*/
_LIT(KFormat11,"%E%D%X%N%Y %1 %2 %3");
aTime.FormatL(dateString,KFormat11); _LIT(KFormat12,"Full date with date suffix=%S\n");
console->Printf(KFormat12,&dateString);
console->Getch();
/*
这里加 * 表示用简写
*/
_LIT(KFormat13,"%*E%*D%X%*N%Y %1 %2 %3");
aTime.FormatL(dateString,KFormat13); _LIT(KFormat14,"Full date with abbreviated names=%S\n");
console->Printf(KFormat14,&dateString);
console->Getch();
/*
%D = 日
%M = 月
%Y = 年
%/0 是第一个分隔符，以此类推
*/
_LIT(KFormat15,"%D%M%Y %/0%1%/1%2%/2%3%/3");
aTime.FormatL(dateString,KFormat15); _LIT(KFormat16,"dd/mm/yyyy=%S\n");
console->Printf(KFormat16,&dateString);
console->Getch();
/*
%:0 = 时间的分隔符
%H = 小时
%T = 分
%S = 秒
%C = 微秒 %*C3 表示取简写微秒的前3位
*/
_LIT(KFormat17,"%:0%H%:1%T%:2%S.%*C3%:3");
aTime.FormatL(dateString,KFormat17); _LIT(KFormat18,"Hour,minute,second,microssecond(24 hr) %S\n");
console->Printf(KFormat18,&dateString);
console->Getch();
/*
%I = 12 小时制 的小时
*/
_LIT(KFormat19,"%:0%I%:1%T%:2%S.%*C3%:3%A");
aTime.FormatL(dateString,KFormat19);
_LIT(KFormat20,"hour,minute,second,microsecond (12 hr) %S\n");
console->Printf(KFormat20,&dateString);
}void printDifferences(TTime atime,TTime aNewTime)
{
TBuf<40> dateString;
TBuf<40> newDateString; _LIT(KFormat21,"%D%M%Y%/0%1%/1%2%/2%3%/3 %:0%H%:1%T:2%S.%C%:3");
atime.FormatL(dateString,KFormat21); _LIT(KFormat22,"%D%M%Y%/0%1%/1%2%/2%3%/3 %:0%H%:1%T%:2%S.%C%:3");
aNewTime.FormatL(newDateString,KFormat22); _LIT(KFormat23,"number of months betweenn%S and \n%S = %d\n");
console->Printf(KFormat23,&dateString,&newDateString,
atime.MonthsFrom(aNewTime));
}// Local FunctionsLOCAL_C void MainL(const TDesC& aArgs)
{
//
// add your program code here, example code below
//
//console->Write(_L("Hello, world!\n"));
TTime time;
TDateTime dateTime; time.HomeTime();
_LIT(KTxt1,"Current date and time in fields(locale in independent):\n");
console->Printf(KTxt1); dateTime = time.DateTime();
_LIT(KFormat1,"%d %d %d %d:%d:%d.%d\n");
console->Printf(KFormat1,dateTime.Year(),TInt(dateTime.Month()+1),
dateTime.Day()+1,dateTime.Hour(),dateTime.Minute(),dateTime.Second(),
dateTime.MicroSecond()); console->Getch(); // 自定义时间
TInt year=1996,month=12,day=31;
TInt error=dateTime.Set(year,TMonth(month-1),day-1,23,59,59,999999);
User::LeaveIfError(error);
time=dateTime;
console->ClearScreen();
_LIT(KTxt2,"Reset date and time ...\n");
console->Printf(KTxt2);
printDatatime(time); // 时间的间隔
TTimeIntervalMonths timeIntervalmonths(4);
time+=timeIntervalmonths;
_LIT(Ktxt3,"add 4 months to date:\n");
console->Printf(Ktxt3);
printDatatime(time);
console->Getch();
// 减少两个月
timeIntervalmonths = -2;
// 或者用 time-= timeIntervalmonths,timeIntervalmonths 为 2
_LIT(Ktxt31,"dec 2 months to date:\n");
time+=timeIntervalmonths;
console->Printf(Ktxt31);
printDatatime(time);
console->Getch();
// 秒的操作 2147483647 是最大值
TTimeIntervalSeconds secInterval(2147483647);
time+=secInterval;
_LIT(KTxt5,"add 2147483647 seconds to date is overflow:\n");
console->Printf(KTxt5);
printDatatime(time); // 设置时间
console->ClearScreen();
day=5,month=1,year=1997;
dateTime.SetMonth(TMonth(month-1));
dateTime.SetDay(day);
dateTime.SetYear(year);
time = dateTime;
_LIT(KTxt6,"reset date\n");
console->Printf(KTxt6);
printDatatime(time);
showProperties(time);
console->Getch();
console->ClearScreen();
showFormatting(time); // 计算日期
TDateTime newDatetime(1996,EJanuary,5,23,59,59,999999);
TTime newTime(newDatetime);
printDifferences(time,newTime); TTimeIntervalSeconds timeIntervalMS(1);
newTime += timeIntervalMS;
printDifferences(time,newTime);
console->Getch();
newDatetime.SetYear(1998);
newTime = newDatetime;
printDifferences(time,newTime);
newTime += timeIntervalMS;
printDifferences(time,newTime);
console->Printf(_L("Command line args: \"%S\"\n"), &aArgs);
}
代码
