None

None

是一个用作某些选项的设置.

范例

基本范例  (4)

ContourPlot 中,用 None 仅显示等高线:

仅绘制网格线:

None 指明区域上的空洞或无内容区域:

None 指明不使用顶点标签:

Wolfram Research (1988),None,Wolfram 语言函数,https://reference.wolfram.com/language/ref/None.html.

文本

Wolfram Research (1988),None,Wolfram 语言函数,https://reference.wolfram.com/language/ref/None.html.

CMS

Wolfram 语言. 1988. "None." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/None.html.

APA

Wolfram 语言. (1988). None. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/None.html 年

BibTeX

@misc{reference.wolfram_2024_none, author="Wolfram Research", title="{None}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/None.html}", note=[Accessed: 21-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_none, organization={Wolfram Research}, title={None}, year={1988}, url={https://reference.wolfram.com/language/ref/None.html}, note=[Accessed: 21-November-2024 ]}