中国DOS联盟

任意一个日期将其转换成相应的星期的代码怎么写。

如：2008/02/26
转换得到：星期二

vbs的话很简单就1~2条命令,但是现在还不知道函数
稍等~

datepart("w",date)

datepart("w",date)
这命令行似乎不行，命令err.

aDate = InputBox("请输入一个日期：", "BY: fastslz",date)



aWeek = DatePart("w", aDate)

Select Case aWeek

    Case 1 Wscript.Echo "星期天"

    Case 2 Wscript.Echo "星期一"

    Case 3 Wscript.Echo "星期二"

    Case 4 Wscript.Echo "星期三"

    Case 5 Wscript.Echo "星期四"

    Case 6 Wscript.Echo "星期五"

    Case 7 Wscript.Echo "星期六"

End Select

以上代码是让我保存成bat来运行吗？还是其他

vbs

我不是说了吗，vbs

这个bat的

@echo off

>tmp.vbs Echo  aDate = InputBox("请输入一个日期：", "BY: fastslz",date)

>>tmp.vbs Echo  aWeek = DatePart("w", aDate)

>>tmp.vbs Echo  Select Case aWeek

>>tmp.vbs Echo      Case 1 Wscript.Echo "星期天"

>>tmp.vbs Echo      Case 2 Wscript.Echo "星期一"

>>tmp.vbs Echo      Case 3 Wscript.Echo "星期二"

>>tmp.vbs Echo      Case 4 Wscript.Echo "星期三"

>>tmp.vbs Echo      Case 5 Wscript.Echo "星期四"

>>tmp.vbs Echo      Case 6 Wscript.Echo "星期五"

>>tmp.vbs Echo      Case 7 Wscript.Echo "星期六"

>>tmp.vbs Echo  End Select

for /f "delims=" %%i in ('cscript.exe //nologo tmp.vbs') do set aDate=%%i&del tmp.vbs

Echo %aDate%

pause

好的谢谢

bat版本的:

@echo off

:支持2008年,其他年份算法类似

:没有容错处理

:s

set "mod=145136140250"

set /p rq=输入:月/日

for /f "delims=/ tokens=1,2" %%a in ("%rq%") do set d=%%b&call set n=%%mod:~,%%a%%

set s=%n:~-1%

set/a w=(%d%+%s%)%%7

if %w% equ 0 set w=日

echo 2008/%rq%这一天是:星期%w%&echo.

goto :s

其实关于星期计算有:
基姆拉尔森计算公式
W= (d+2*m+3*(m+1)/5+y+y/4-y/100+y/400) mod 7
在公式中d表示日期中的日数＋1，m表示月份数，y表示年数
只是这个算法比上面的算法复杂,代码也长.

Last edited by plp626 on 2008-2-27 at 02:09 PM ]

@ECHO OFF
set /a y = %date:~0,4%
if %date:~5,1% EQU 0 set /a m = %date:~6,1%
if %date:~5,1% NEQ 0 set /a m = %date:~5,2%
if %date:~8,1% EQU 0 set /a d = %date:~9,1%
if %date:~9,1% NEQ 0 set /a d = %date:~8,2%
if %m% EQU 1 set /a m = 13
if %m% EQU 2 set /a m = 14

set /a w = (d + 2*m+3*(m+1)/5+y+y/4-y/100+y/400) - ((d + 2*m+3*(m+1)/5+y+y/4-y/100+y/400)/7)*7 + 1
set /a yy = (y - 4*(y/4))
if %m% EQU 13 if %yy% EQU 0 set /a w = w -2
if %m% EQU 14 if %yy% EQU 0 set /a w = w -2
if %m% EQU 13 if %yy% NEQ 0 set /a w = w - 1
if %m% EQU 14 if %yy% NEQ 0 set /a w = w - 1
if %w% EQU -1 set /a w = 6
if %w% EQU 0 set /a w = 7
IF %w% == 6 echo 今天是星期六
IF %w% == 7 echo 今天是星期天
pause