AskedQ

AskedQ["key"]

是用于 AskFunction 内部的一个结构，如果一个值当前与 key 关联，给出 True，否则给出 False.

范例

基本范例  (2)

使用 AskedQ 验证一个键是否被请求：

将 AskedQ 用作循环的条件：

Wolfram Research (2016)，AskedQ，Wolfram 语言函数，https://reference.wolfram.com/language/ref/AskedQ.html.

文本

Wolfram Research (2016)，AskedQ，Wolfram 语言函数，https://reference.wolfram.com/language/ref/AskedQ.html.

CMS

Wolfram 语言. 2016. "AskedQ." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/AskedQ.html.

APA

Wolfram 语言. (2016). AskedQ. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/AskedQ.html 年

BibTeX

@misc{reference.wolfram_2024_askedq, author="Wolfram Research", title="{AskedQ}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/AskedQ.html}", note=[Accessed: 22-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_askedq, organization={Wolfram Research}, title={AskedQ}, year={2016}, url={https://reference.wolfram.com/language/ref/AskedQ.html}, note=[Accessed: 22-November-2024 ]}