SameAs
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SameAs
范例
打开所有单元关闭所有单元基本范例 (3)常见实例总结
范围 (2)标准用法实例范围调查
In[1]:=1

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https://wolfram.com/xid/0j4xofoi-s86
Out[1]=1

Equal 则视其为相等:
In[2]:=2

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https://wolfram.com/xid/0j4xofoi-hor
Out[2]=2

In[1]:=1

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https://wolfram.com/xid/0j4xofoi-bmiidx
Out[1]=1

应用 (1)用该函数可以解决的问题范例
创建 FalseQ,TrueQ 的变种,当表达式为 a 时返回 True:
In[1]:=1

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https://wolfram.com/xid/0j4xofoi-je3foe
Out[1]=1

In[2]:=2

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https://wolfram.com/xid/0j4xofoi-pg8ce
Out[2]=2

In[3]:=3

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https://wolfram.com/xid/0j4xofoi-lj0x5
Out[3]=3

In[4]:=4

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https://wolfram.com/xid/0j4xofoi-ce4oin
Out[4]=4

In[5]:=5

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https://wolfram.com/xid/0j4xofoi-nztlk2
Out[5]=5

In[6]:=6

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https://wolfram.com/xid/0j4xofoi-czvg89
Out[6]=6

In[7]:=7

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https://wolfram.com/xid/0j4xofoi-ccyoey
Out[7]=7

In[8]:=8

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https://wolfram.com/xid/0j4xofoi-br7ved

属性和关系 (2)函数的属性及与其他函数的关联
SameQ 没有算符形式,因为单个元素与自身相同:
In[1]:=1

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https://wolfram.com/xid/0j4xofoi-gf3r2y
Out[1]=1

In[2]:=2

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https://wolfram.com/xid/0j4xofoi-ccospd
Out[2]=2

In[3]:=3

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https://wolfram.com/xid/0j4xofoi-cpnold
Out[3]=3

In[4]:=4

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https://wolfram.com/xid/0j4xofoi-b0wzkj
Out[4]=4

将 SameAs 应用于空参数时返回的结果将始终为真:
In[1]:=1

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https://wolfram.com/xid/0j4xofoi-u1jjq
Out[1]=1

这相当于与将 SameQ 应用于一个参数:
In[2]:=2

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https://wolfram.com/xid/0j4xofoi-mm646l
Out[2]=2

Wolfram Research (2022),SameAs,Wolfram 语言函数,https://reference.wolfram.com/language/ref/SameAs.html.
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Wolfram Research (2022),SameAs,Wolfram 语言函数,https://reference.wolfram.com/language/ref/SameAs.html.
文本
Wolfram Research (2022),SameAs,Wolfram 语言函数,https://reference.wolfram.com/language/ref/SameAs.html.
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Wolfram Research (2022),SameAs,Wolfram 语言函数,https://reference.wolfram.com/language/ref/SameAs.html.
CMS
Wolfram 语言. 2022. "SameAs." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/SameAs.html.
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Wolfram 语言. 2022. "SameAs." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/SameAs.html.
APA
Wolfram 语言. (2022). SameAs. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/SameAs.html 年
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Wolfram 语言. (2022). SameAs. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/SameAs.html 年
BibTeX
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@misc{reference.wolfram_2025_sameas, author="Wolfram Research", title="{SameAs}", year="2022", howpublished="\url{https://reference.wolfram.com/language/ref/SameAs.html}", note=[Accessed: 02-April-2025
]}
BibLaTeX
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@online{reference.wolfram_2025_sameas, organization={Wolfram Research}, title={SameAs}, year={2022}, url={https://reference.wolfram.com/language/ref/SameAs.html}, note=[Accessed: 02-April-2025
]}