C++ Builder 參考手冊(cè) ? System::Sysutils ? FormatBuf

格式化數(shù)據(jù)到字符串

頭文件：#include <System.SysUtils.hpp>
命名空間：System::Sysutils
函數(shù)原型：

unsigned __fastcall FormatBuf(void *Buffer, unsigned BufLen,
    const void *Format, unsigned FmtLen,
    const System::TVarRec *Args, const int Args_High);

unsigned __fastcall FormatBuf(ystem::WideChar * Buffer, unsigned BufLen,
    const void *Format, unsigned FmtLen,
    const System::TVarRec *Args, onst int Args_High);

unsigned __fastcall FormatBuf(ystem::WideChar * Buffer, unsigned BufLen,
    const void *Format, unsigned FmtLen,
    const System::TVarRec *Args, const int Args_High,
    const TFormatSettings &AFormatSettings);

unsigned __fastcall FormatBuf(System::UnicodeString &Buffer, unsigned BufLen,
    const void *Format, unsigned FmtLen,
    const System::TVarRec *Args, const int Args_High);

unsigned __fastcall FormatBuf(System::UnicodeString &Buffer, unsigned BufLen,
    const void *Format, unsigned FmtLen,
    const System::TVarRec *Args, const int Args_High,
    const TFormatSettings &AFormatSettings);

unsigned __fastcall FormatBuf(void *Buffer, unsigned BufLen,
    const void *Format, unsigned FmtLen,
    const System::TVarRec *Args, const int Args_High,
    const TFormatSettings &AFormatSettings);

參數(shù)：

• Buffer：用于返回生成的字符串罪既；
• BufLen：參數(shù) Buffer 的長(zhǎng)度 (可以容納的字符個(gè)數(shù))；
• Format：輸出數(shù)據(jù)的格式呵恢；
• FmtLen：參數(shù) Format 的長(zhǎng)度 (包含字符的個(gè)數(shù))峡懈；
• Args：要輸出的數(shù)據(jù)數(shù)組落追；
• Args_High：數(shù)據(jù)的個(gè)數(shù)減1；
• AFormatSettings：地區(qū)格式；

返回值：

• 按照 Format 參數(shù)的格式輸出參數(shù) Args 數(shù)據(jù)到字符串坎穿，通過(guò)參數(shù) Buffer 返回生成的字符串；
• 這個(gè)函數(shù)的參數(shù)及生成的字符串規(guī)則和 Format 函數(shù)相同返劲。
• 沒有 AFormatSettings 參數(shù)的函數(shù)不是線程安全的玲昧，因?yàn)槭褂昧巳肿兞孔鳛榈貐^(qū)格式；帶有 AFormatSettings 參數(shù)的函數(shù)是線程安全的篮绿。

相關(guān)：

• System::Sysutils::Format
• System::Sysutils::FormatBuf
• System::Sysutils::FormatCurr
• System::Sysutils::FormatDateTime
• System::Sysutils::FormatFloat
• System::Sysutils::FmtStr
• System::Sysutils::FmtLoadStr
• System::Sysutils::StrFmt
• System::Sysutils::StrLFmt
• System::Sysutils::WideFormat
• System::Sysutils::WideFormatBuf
• System::Sysutils::WideFmtStr
• System::Sysutils
• std::printf, std::_tprintf, std::wprintf
• std::sprintf, std::_stprintf, std::swprintf
• std::vprintf, std::_vtprintf, std::vwprintf
• std::vsprintf, std::_vstprintf, std::vswprintf
• std::snprintf, std::_sntprintf, std::snwprintf
• std::vsnprintf, std::_vsntprintf, std::vsnwprintf
• <cstdio>

C++ Builder 參考手冊(cè) ? System::Sysutils ? FormatBuf