$Failed

$Failed

特定の関数が要求されたことを実行できなかった場合に返す特殊なシンボルである．

詳細

  • Getは，指定されたファイルや他のオブジェクトを見出せなかったときに$Failedを返す．

例題

例  (1)

存在しないファイルを開こうとすると$Failedが返される：

Wolfram Research (1991), $Failed, Wolfram言語関数， https://reference.wolfram.com/language/ref/$Failed.html.

テキスト

Wolfram Research (1991), $Failed, Wolfram言語関数， https://reference.wolfram.com/language/ref/$Failed.html.

CMS

Wolfram Language. 1991. "$Failed." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$Failed.html.

APA

Wolfram Language. (1991). $Failed. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$Failed.html

BibTeX

@misc{reference.wolfram_2024_$failed, author="Wolfram Research", title="{$Failed}", year="1991", howpublished="\url{https://reference.wolfram.com/language/ref/$Failed.html}", note=[Accessed: 22-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_$failed, organization={Wolfram Research}, title={$Failed}, year={1991}, url={https://reference.wolfram.com/language/ref/$Failed.html}, note=[Accessed: 22-November-2024 ]}