JavaScript改寫為C

MFC里面有個CTime類，你可以拿來直接用

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#include?time.h

#include?assert.h

#include?stdio.h

class?CTimeSpan

{

public:

CTimeSpan()?throw();

CTimeSpan(?__time64_t?time?)?throw();

CTimeSpan(?long?lDays,?int?nHours,?int?nMins,?int?nSecs?)?throw();

__int64?GetDays()?const?throw();

__int64?GetTotalHours()?const?throw();

long?GetHours()?const?throw();

__int64?GetTotalMinutes()?const?throw();

long?GetMinutes()?const?throw();

__int64?GetTotalSeconds()?const?throw();

long?GetSeconds()?const?throw();

__time64_t?GetTimeSpan()?const?throw();

CTimeSpan?operator+(?CTimeSpan?span?)?const?throw();

CTimeSpan?operator-(?CTimeSpan?span?)?const?throw();

CTimeSpan?operator+=(?CTimeSpan?span?)?throw();

CTimeSpan?operator-=(?CTimeSpan?span?)?throw();

bool?operator==(?CTimeSpan?span?)?const?throw();

bool?operator!=(?CTimeSpan?span?)?const?throw();

bool?operator(?CTimeSpan?span?)?const?throw();

bool?operator(?CTimeSpan?span?)?const?throw();

bool?operator=(?CTimeSpan?span?)?const?throw();

bool?operator=(?CTimeSpan?span?)?const?throw();

private:

__time64_t?m_timeSpan;

};

inline?CTimeSpan::CTimeSpan()?throw()?:?

m_timeSpan(0)

{

}

inline?CTimeSpan::CTimeSpan(?__time64_t?time?)?throw()?:?

m_timeSpan(?time?)

{

}

inline?CTimeSpan::CTimeSpan(long?lDays,?int?nHours,?int?nMins,?int?nSecs)?throw()

{

m_timeSpan?=?nSecs?+?60*?(nMins?+?60*?(nHours?+?__int64(24)?*?lDays));

}

inline?__int64?CTimeSpan::GetDays()?const?throw()

{

return(?m_timeSpan/(24*3600)?);

}

inline?__int64?CTimeSpan::GetTotalHours()?const?throw()

{

return(?m_timeSpan/3600?);

}

inline?long?CTimeSpan::GetHours()?const?throw()

{

return(?long(?GetTotalHours()-(GetDays()*24)?)?);

}

inline?__int64?CTimeSpan::GetTotalMinutes()?const?throw()

{

return(?m_timeSpan/60?);

}

inline?long?CTimeSpan::GetMinutes()?const?throw()

{

return(?long(?GetTotalMinutes()-(GetTotalHours()*60)?)?);

}

inline?__int64?CTimeSpan::GetTotalSeconds()?const?throw()

{

return(?m_timeSpan?);

}

inline?long?CTimeSpan::GetSeconds()?const?throw()

{

return(?long(?GetTotalSeconds()-(GetTotalMinutes()*60)?)?);

}

inline?__time64_t?CTimeSpan::GetTimeSpan()?const?throw()

{

return(?m_timeSpan?);

}

inline?CTimeSpan?CTimeSpan::operator+(?CTimeSpan?span?)?const?throw()

{

return(?CTimeSpan(?m_timeSpan+span.m_timeSpan?)?);

}

inline?CTimeSpan?CTimeSpan::operator-(?CTimeSpan?span?)?const?throw()

{

return(?CTimeSpan(?m_timeSpan-span.m_timeSpan?)?);

}

inline?CTimeSpan?CTimeSpan::operator+=(?CTimeSpan?span?)?throw()

{

m_timeSpan?+=?span.m_timeSpan;

return(?*this?);

}

inline?CTimeSpan?CTimeSpan::operator-=(?CTimeSpan?span?)?throw()

{

m_timeSpan?-=?span.m_timeSpan;

return(?*this?);

}

inline?bool?CTimeSpan::operator==(?CTimeSpan?span?)?const?throw()

{

return(?m_timeSpan?==?span.m_timeSpan?);

}

inline?bool?CTimeSpan::operator!=(?CTimeSpan?span?)?const?throw()

{

return(?m_timeSpan?!=?span.m_timeSpan?);

}

inline?bool?CTimeSpan::operator(?CTimeSpan?span?)?const?throw()

{

return(?m_timeSpan??span.m_timeSpan?);

}

inline?bool?CTimeSpan::operator(?CTimeSpan?span?)?const?throw()

{

return(?m_timeSpan??span.m_timeSpan?);

}

inline?bool?CTimeSpan::operator=(?CTimeSpan?span?)?const?throw()

{

return(?m_timeSpan?=?span.m_timeSpan?);

}

inline?bool?CTimeSpan::operator=(?CTimeSpan?span?)?const?throw()

{

return(?m_timeSpan?=?span.m_timeSpan?);

}

class?CTime

{

public:

static?CTime?__stdcall?GetCurrentTime()?throw();

CTime()?throw();

CTime(?__time64_t?time?)?throw();

CTime(?int?nYear,?int?nMonth,?int?nDay,?int?nHour,?int?nMin,?int?nSec,

int?nDST?=?-1?);

CTime(?unsigned?short?wDosDate,?unsigned?short?wDosTime,?int?nDST?=?-1?);

CTime?operator=(?__time64_t?time?)?throw();

CTime?operator+=(?CTimeSpan?span?)?throw();

CTime?operator-=(?CTimeSpan?span?)?throw();

CTimeSpan?operator-(?CTime?time?)?const?throw();

CTime?operator-(?CTimeSpan?span?)?const?throw();

CTime?operator+(?CTimeSpan?span?)?const?throw();

bool?operator==(?CTime?time?)?const?throw();

bool?operator!=(?CTime?time?)?const?throw();

bool?operator(?CTime?time?)?const?throw();

bool?operator(?CTime?time?)?const?throw();

bool?operator=(?CTime?time?)?const?throw();

bool?operator=(?CTime?time?)?const?throw();

struct?tm*?GetGmtTm(?struct?tm*?ptm?)?const;

struct?tm*?GetLocalTm(?struct?tm*?ptm?)?const;

__time64_t?GetTime()?const?throw();

int?GetYear()?const?throw();

int?GetMonth()?const?throw();

int?GetDay()?const?throw();

int?GetHour()?const?throw();

int?GetMinute()?const?throw();

int?GetSecond()?const?throw();

int?GetDayOfWeek()?const?throw();

private:

__time64_t?m_time;

};

inline?CTime?__stdcall?CTime::GetCurrentTime()?throw()

{

return(?CTime(?::_time64(?NULL?)?)?);

}

inline?CTime::CTime()?throw()?:?

m_time(0)

{

}

inline?CTime::CTime(?__time64_t?time?)?throw():?

m_time(?time?)

{

}

inline?CTime::CTime(int?nYear,?int?nMonth,?int?nDay,?int?nHour,?int?nMin,?int?nSec,

int?nDST)

{

#pragma?warning?(push)

#pragma?warning?(disable:?4127)?//?conditional?expression?constant

assert(?nYear?=?1900?);

assert(?nMonth?=?1??nMonth?=?12?);

assert(?nDay?=?1??nDay?=?31?);

assert(?nHour?=?0??nHour?=?23?);

assert(?nMin?=?0??nMin?=?59?);

assert(?nSec?=?0??nSec?=?59?);

#pragma?warning?(pop)

struct?tm?atm;

atm.tm_sec?=?nSec;

atm.tm_min?=?nMin;

atm.tm_hour?=?nHour;

atm.tm_mday?=?nDay;

atm.tm_mon?=?nMonth?-?1;?//?tm_mon?is?0?based

atm.tm_year?=?nYear?-?1900;?//?tm_year?is?1900?based

atm.tm_isdst?=?nDST;

m_time?=?_mktime64(atm);

assert(m_time?!=?-1);?//?indicates?an?illegal?input?time

}

inline?CTime::CTime(unsigned?short?wDosDate,?unsigned?short?wDosTime,?int?nDST)

{

struct?tm?atm;

atm.tm_sec?=?(wDosTime??~0xFFE0)??1;

atm.tm_min?=?(wDosTime??~0xF800)??5;

atm.tm_hour?=?wDosTime??11;

atm.tm_mday?=?wDosDate??~0xFFE0;

atm.tm_mon?=?((wDosDate??~0xFE00)??5)?-?1;

atm.tm_year?=?(wDosDate??9)?+?80;

atm.tm_isdst?=?nDST;

m_time?=?_mktime64(atm);

assert(m_time?!=?-1);?//?indicates?an?illegal?input?time

}

inline?CTime?CTime::operator=(?__time64_t?time?)?throw()

{

m_time?=?time;

return(?*this?);

}

inline?CTime?CTime::operator+=(?CTimeSpan?span?)?throw()

{

m_time?+=?span.GetTimeSpan();

return(?*this?);

}

inline?CTime?CTime::operator-=(?CTimeSpan?span?)?throw()

{

m_time?-=?span.GetTimeSpan();

return(?*this?);

}

inline?CTimeSpan?CTime::operator-(?CTime?time?)?const?throw()

{

return(?CTimeSpan(?m_time-time.m_time?)?);

}

inline?CTime?CTime::operator-(?CTimeSpan?span?)?const?throw()

{

return(?CTime(?m_time-span.GetTimeSpan()?)?);

}

inline?CTime?CTime::operator+(?CTimeSpan?span?)?const?throw()

{

return(?CTime(?m_time+span.GetTimeSpan()?)?);

}

inline?bool?CTime::operator==(?CTime?time?)?const?throw()

{

return(?m_time?==?time.m_time?);

}

inline?bool?CTime::operator!=(?CTime?time?)?const?throw()

{

return(?m_time?!=?time.m_time?);

}

inline?bool?CTime::operator(?CTime?time?)?const?throw()

{

return(?m_time??time.m_time?);

}

inline?bool?CTime::operator(?CTime?time?)?const?throw()

{

return(?m_time??time.m_time?);

}

inline?bool?CTime::operator=(?CTime?time?)?const?throw()

{

return(?m_time?=?time.m_time?);

}

inline?bool?CTime::operator=(?CTime?time?)?const?throw()

{

return(?m_time?=?time.m_time?);

}

inline?struct?tm*?CTime::GetGmtTm(struct?tm*?ptm)?const

{

//?Ensure?ptm?is?valid

assert(?ptm?!=?NULL?);

if?(ptm?!=?NULL)

{

struct?tm?ptmTemp;

errno_t?err?=?_gmtime64_s(ptmTemp,?m_time);

//?Be?sure?the?call?succeeded

if(err?!=?0)?{?return?NULL;?}

*ptm?=?ptmTemp;

return?ptm;

}

return?NULL;

}

inline?struct?tm*?CTime::GetLocalTm(struct?tm*?ptm)?const

{

//?Ensure?ptm?is?valid

assert(?ptm?!=?NULL?);

if?(ptm?!=?NULL)

{

struct?tm?ptmTemp;

errno_t?err?=?_localtime64_s(ptmTemp,?m_time);

if?(err?!=?0)

{

return?NULL;?//?indicates?that?m_time?was?not?initialized!

}

*ptm?=?ptmTemp;

return?ptm;

}

return?NULL;

}

inline?__time64_t?CTime::GetTime()?const?throw()

{

return(?m_time?);

}

inline?int?CTime::GetYear()?const

{?

struct?tm?ttm;

struct?tm?*?ptm;

ptm?=?GetLocalTm(ttm);

return?ptm???(ptm-tm_year)?+?1900?:?0?;?

}

inline?int?CTime::GetMonth()?const

{?

struct?tm?ttm;

struct?tm?*?ptm;

ptm?=?GetLocalTm(ttm);

return?ptm???ptm-tm_mon?+?1?:?0;

}

inline?int?CTime::GetDay()?const

{

struct?tm?ttm;

struct?tm?*?ptm;

ptm?=?GetLocalTm(ttm);

return?ptm???ptm-tm_mday?:?0?;?

}

inline?int?CTime::GetHour()?const

{

struct?tm?ttm;

struct?tm?*?ptm;

ptm?=?GetLocalTm(ttm);

return?ptm???ptm-tm_hour?:?-1?;?

}

inline?int?CTime::GetMinute()?const

{

struct?tm?ttm;

struct?tm?*?ptm;

ptm?=?GetLocalTm(ttm);

return?ptm???ptm-tm_min?:?-1?;?

}

inline?int?CTime::GetSecond()?const

{?

struct?tm?ttm;

struct?tm?*?ptm;

ptm?=?GetLocalTm(ttm);

return?ptm???ptm-tm_sec?:?-1?;

}

inline?int?CTime::GetDayOfWeek()?const

{?

struct?tm?ttm;

struct?tm?*?ptm;

ptm?=?GetLocalTm(ttm);

return?ptm???ptm-tm_wday?+?1?:?0?;

}

void?date()

{

CTime?together?=?CTime(2013,?6,?22,?12,?30,?30);

CTime?now?=?CTime::GetCurrentTime();

CTimeSpan?left=now-together;

printf("%ld天",left.GetDays());

printf("%02ld時",left.GetHours());

printf("%02ld分",left.GetMinutes());

printf("%02ld秒",left.GetSeconds());

}

void?main()

{

date();

}

js如何調用c語言寫的api

包含api的.h文件，然后直接調用就可以了，比如winsock.h，可以調用recv等函數(shù)，也可以在函數(shù)前面加::

答案補充

HWND hWnd = ::FindWindow(sClassName, sWindowName);//傳入類明到sClassName，窗口名sWindowName，否則傳入NULL

在網(wǎng)頁編程語言javascript 中能否調用一段C/C++的代碼？

你可以這樣,把你的C++代碼做成COM組件,然后在asp就可以調用了. 在asp里實現(xiàn)的一些特殊功能一般都是通過COM來實現(xiàn)的

javascript 語言有沒有辦法調用C語言寫的函數(shù)?謝了.

個人感覺：不可能。。你的想法也太夸張了，javascript 是用于網(wǎng)頁上的，我還聽說C可以。。。

如何在 JavaScript 中使用 C 程序

我自己建了個java類名叫account在calculator.bean包中，通過import="calculator.bean.account"引入JSP頁面了，怎樣在JavaScript中調用account里的方法jisuan()?

用var a=new account然后a.jisuan()貌似不行啊?

靜待高手指教，越簡單越好!

本文標題：JavaScript調c,JavaScript 回調
標題鏈接：http://chinadenli.net/article0/dsihsio.html

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