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我想更改DayOfWeek()功能，以便我可以根据自己想要的一周的第一天获取日期。所以我在这段代码中所做的是我正在设置 a startDate，endDate并且selectDays我想检查它。这是我的代码：

<cfscript>

function Mydayofweek(date, day_1)
{   
    return (((DayOfWeek(date) + (7 -day_1)) MOD 7) +1);
}

</cfscript>

<cfset startDate = '07/01/2013'>
<cfset endDate = '07/25/2013'>
<Cfset mydates = ''>
<cfset selectDays = '2,6'>

<cfset MyWeekFirstDay = 6> <!---I selected Friday = 6 --->
<cfset new = ''>

<cfoutput>
    <cfloop list="#selectDays#" delimiters="," index="d">
        <cfset new &=  '#Mydayofweek(d, MyWeekFirstDay)#,' >
    </cfloop>


<cfif new NEQ ''>
    <cfset ScheduleDate = left(new, (len(new)-1) )>
</cfif>

<cfdump var="#ScheduleDate#"><br />
</cfoutput>
<cfset AppendToMyDates = false>
 <cfloop from="#startDate#" to="#endDate#" index="day">
 <cfif AppendToMyDates is false and DayOfWeek(day) is ListFirst(selectDays)>
 <cfset AppendToMyDates = true>
 </cfif>

    <cfif listfind(ScheduleDate, DayOfWeek(day), ',') NEQ 0 and AppendToMyDates is true>

      <cfset mydates &= "#dateformat(day, 'mmm, dd, yyyy dddd')#,<br />">

    </cfif>
    </cfloop><cfoutput>#mydates#</cfoutput>

这是用 ColdFusion 编写的。该代码生成以下输出：

4,1
Jul, 03, 2013 Wednesday,
Jul, 07, 2013 Sunday,
Jul, 10, 2013 Wednesday,
Jul, 14, 2013 Sunday,
Jul, 17, 2013 Wednesday,
Jul, 21, 2013 Sunday,
Jul, 24, 2013 Wednesday,

输出应该是这样的，因为我选择 Friday = 1 到 Thursday = 7 所以上面的日子selectDays = '2,6'现在应该指向 selectDays = '7,4' 相对于我的第一天2,6 

7,4
Jul, 06, 2013 Saturday,
Jul, 10, 2013 Wednesday,
Jul, 13, 2013 Saturday,
Jul, 17, 2013 Wednesday,
Jul, 20, 2013 Saturday,
Jul, 24, 2013 Wednesday,

我已经设置了我的selectDays = '2,6'意思是我想要获取日期，Saturday因为Wednesday我已经将 6 设置为我一周的第一天，它从星期五开始（默认情况下是星期天）。我的日子从星期日开始Sunday = 1 , Monday = 2 , Tuesday = 3 , Wednesday = 4 , Thursday = 5 , Friday = 6 , Saturday = 7，现在我从Friday = 1 , Saturday = 2 ,Sunday = 3 , Monday = 4 , Tuesday = 5 , Wednesday = 6 , Thursday = 7脚本函数中更改了日期。实际上，我认为我的脚本函数中存在我不理解的错误。请帮我找出问题并解决，谢谢

更新

4

3 回答 3

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您只需要将脚本调用到循环中。无需制作任何功能，只需像这样更改代码即可。复制此代码希望这将解决您的问题。

<cfscript>
  function Mydayofweek(date, day_1)
  {   
     return (((DayOfWeek(date) + (7 -day_1)) MOD 7) +1);
  } 
</cfscript>

<cfset startDate = '07/01/2013'>
<cfset endDate = '07/25/2013'>
<Cfset mydates = ''>
<cfset selectDays = '2,6'>
<cfset MyWeekFirstDay = 6><!---I selected Friday = 6 --->


<cfloop from="#startDate#" to="#endDate#" index="day">
  <cfif listfind(selectDays, Mydayofweek(day,MyWeekFirstDay), ',') NEQ 0 >
    <cfset mydates &= "#dateformat(day, 'mmm, dd, yyyy dddd')#,<br />">
  </cfif>
</cfloop>
<cfoutput>#mydates#</cfoutput>
于 2013-06-27T08:50:26.397 回答
1

有了 selectDays 可能并不总是相同的新信息，我会做这样的事情：

<cfset AppendToMyDates = false>
 <cfloop from="#startDate#" to="#endDate#" index="day">
 <cfif AppendToMyDates is false and DayOfWeek(day) is ListFirst(SelectDays)>
 <cfset AppendToMyDates = true>
 </cfif>

    <cfif listfind(selectDays, DayOfWeek(day), ',') NEQ 0 and AppendToMyDates is true>
      <cfset mydates &= "#dateformat(day, 'mmm, dd, yyyy dddd')#,<br />">
    </cfif>
  </cfloop>

编辑从这里开始

如果您希望一周的开始是一个变量，您希望使用不同的名称编写您自己的 DayOfWeek() 版本。结构将是这样的：

<cffunction name="DayOfWeekModified returntype="numeric">
<cfargument name="WeekStartsOn" type="numeric" required="yes">
<cfscript>
var DayNumber = 0;
code to generate it based on arguments.WeekStartsOn
return DayNumber;
<cfscript>
<cffunction>

然后在循环中调用此函数而不是 DayOfWeek()。

于 2013-06-26T13:11:09.133 回答
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你遇到的问题是你的cfif情况。您正在循环查看日期，然后检查给定日期是星期三还是星期五，并且您得到的结果是正确的。由于您想从星期五开始（忽略第一个星期三），您需要将其添加到您的代码中。这可能对您有用：

<cfset startDate = '06/11/2013'>
<cfset endDate = '06/25/2013'>
<cfset mydates = ''>
<cfset selectDays = '6,4'>

<cfloop from="#startDate#" to="#endDate#" index="day">
    <cfif listfind(selectDays, DayOfWeek(day), ',') NEQ 0>
        <cfif mydates NEQ "" OR DayOfWeek(day) EQ "6">
            <cfset mydates &= "#dateformat(day, 'mmm, dd, yyyy dddd')#,<br />">
        </cfif>
    </cfif>
</cfloop>
<cfoutput>#mydates#</cfoutput>

cfif我在设置周围添加了一个附加条件mydates。这段代码mydates NEQ ""正在检查是否mydates不为空，这意味着我们已经满足了下一个条件。如果mydates为空，则还要检查给定日期是否为星期五DayOfWeek(day) EQ "6"。这应该保证输入的第一个日期mydates是星期五。

不知道我对这段代码的感觉如何，但它似乎对你的示例有用。

于 2013-06-26T12:46:14.337 回答