C++ Builder 參考手冊 ? System::Sysutils ? TryEncodeDate
由年、月、日生成日期時間類型數(shù)值
頭文件:#include <System.SysUtils.hpp>
命名空間:System::Sysutils
函數(shù)原型:
bool __fastcall TryEncodeDate(
System::Word Year,
System::Word Month,
System::Word Day,
System::TDateTime &Date);
參數(shù):
- Year:年,1 ~ 9999
- Month:月,1 ~ 12
- Day:日,1 ~ 31
- Date:返回生成的日期;
返回值:
- true:參數(shù) Date 返回生成的日期時間類型數(shù)值,日期為參數(shù)指定的年、月、日,時間為 00:00:00;
- false:參數(shù)指定的日期 (年、月、日) 無效;
- 函數(shù) EncodeDate 和 TryEncodeDate 的區(qū)別:
? EncodeDate 函數(shù)返回生成的日期,如果日期無效,拋出 EConvertError 異常;
? TryEncodeDate 通過參數(shù)返回生成的日期,如果日期無效,函數(shù)返回 false。
相關(guān):
- System::Sysutils::DecodeDate
- System::Sysutils::DecodeDateFully
- System::Sysutils::DecodeTime
- System::Sysutils::EncodeDate
- System::Sysutils::EncodeTime
- System::Sysutils::TryEncodeDate
- System::Sysutils::TryEncodeTime
- System::Sysutils::TryStrToDate
- System::Sysutils::TryStrToDateTime
- System::Sysutils::TryStrToTime
- System::Sysutils::FormatDateTime
- System::Sysutils::CurrentYear
- System::Sysutils::Now
- System::Sysutils::Date
- System::Sysutils::Time
- System::Sysutils
- System::Dateutils::DecodeDateTime
- System::Dateutils::EncodeDateTime
- System::Dateutils::TryEncodeDateTime
- System::Dateutils::DateTimeToUnix
- System::Dateutils::UnixToDateTime
- System::Dateutils::YearOf
- System::Dateutils::MonthOf
- System::Dateutils::DayOf
- System::Dateutils::DayOfTheWeek
- System::Dateutils::DayOfTheMonth
- System::Dateutils::DayOfTheYear
- System::Dateutils::HourOf
- System::Dateutils::MinuteOf
- System::Dateutils::SecondOf
- System::Dateutils::MilliSecondOf
- System::Dateutils
C++ Builder 參考手冊 ? System::Sysutils ? TryEncodeDate