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$CurrentTask

给出对应的被计算的任务的 TaskObject[…].

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按以下格式引用：

$CurrentTask

$CurrentTask

给出对应的被计算的任务的 TaskObject[…].

更多信息

  • 当在任务对象或由任务产生的事件句柄函数中被计算时，$CurrentTask 被设置为当前的 TaskObject.
  • 如果不是在任务对象中被计算，$CurrentTask 给出 None.

范例

基本范例  (4)

创建一个任务并显示可用的属性：

Wolfram Language code: SessionSubmit[MessageDialog[$CurrentTask["Properties"]]]

显示任务识别器：

Wolfram Language code: SessionSubmit[MessageDialog[$CurrentTask["TaskUUID"]]]

打印任务的当前状态：

Wolfram Language code: SessionSubmit[ScheduledTask[Print[ToString[$CurrentTask["TaskStatus"]]], {1, 3}]]

打印任务的运行计数：

Wolfram Language code: SessionSubmit[ScheduledTask[f, {1, 3}], HandlerFunctions -> <|"ScheduleTriggered" -> Print|>, HandlerFunctionsKeys -> {"TotalRunCount", "PreviousRunCount", "RemainingRunCount"}]

使用 $CurrentTask 打印以前和剩下的运行计数：

Wolfram Language code: SessionSubmit[ScheduledTask[Print[{$CurrentTask["TotalRunCount"], $CurrentTask["PreviousRunCount"], $CurrentTask["RemainingRunCount"]}], {1, 3}]]
Wolfram Research (2017)，$CurrentTask，Wolfram 语言函数，https://reference.wolfram.com/language/ref/$CurrentTask.html.

文本

Wolfram Research (2017)，$CurrentTask，Wolfram 语言函数，https://reference.wolfram.com/language/ref/$CurrentTask.html.

CMS

Wolfram 语言. 2017. "$CurrentTask." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/$CurrentTask.html.

APA

Wolfram 语言. (2017). $CurrentTask. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/$CurrentTask.html 年

BibTeX

@misc{reference.wolfram_2026_$currenttask, author="Wolfram Research", title="{$CurrentTask}", year="2017", howpublished="\url{https://reference.wolfram.com/language/ref/$CurrentTask.html}", note=[Accessed: 26-July-2026]}

BibLaTeX

@online{reference.wolfram_2026_$currenttask, organization={Wolfram Research}, title={$CurrentTask}, year={2017}, url={https://reference.wolfram.com/language/ref/$CurrentTask.html}, note=[Accessed: 26-July-2026]}