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印刷符號 来自维基百科,自由的百科全书
星号(英文:asterisk,拉丁文:asteriscum,意谓“小星星”,来自希腊文 ἀστερίσκος)是印刷符号或字形。之所以称为星号是因为与一般人印象中的星星相似。电脑科学家与数学家常称之为“star”或“星”(例如“A*搜寻算法”和“C*-代数”)。
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星号起源于欧洲封建时代,族谱印制者要表示出生日期的符号。最初的形状是六芒,每一芒都像是由中央散开的泪珠。因此,有些电脑界的圈子称之为“splat”(状声词,类似中文的“啪”),或许是因为许多早期的列式打印机印出来的星号看起来像是被压扁的虫子。
很多文化有自己独特的星号。中国与日本用的是“※”,看起来像是汉字的“米”。阿拉伯式的星号是六芒星。于某些字体,星号是五芒,阿拉伯星号则为八芒。
在历史语言学,字旁的星号表示这个字是重建而未经证实的历史形式。
星号在数学上频繁使用,当中包括:
星号在所有数学分支中也经常用于表示由一个字母表示的两个数学实体之间的对应——一个有星号,一个没有。
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.[1]类似符号
Asterisk | Asterisk Operator | Heavy Asterisk | Small Asterisk | Full Width Asterisk | Open Centre Asterisk |
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* | ∗ | ✱ | ﹡ | * | ✲ |
Low Asterisk | Arabic star | East Asian reference mark | Teardrop-Spoked Asterisk | Sixteen Pointed Asterisk |
---|---|---|---|---|
⁎ | ٭ | ※ | ✻ | ✺ |
名称 | Unicode | 十进制 | UTF-8 | HTML | 显示为 |
Asterisk | U+002A | * | 2A | * | * |
Combining Asterisk Below | U+0359 | ͙ | CD 99 | ͙ | |
Arabic Five Pointed Star | U+066D | ٭ | D9 AD | ٭ | |
East Asian Reference Mark | U+203B | ※ | E2 80 BB | ※ | |
Flower Punctuation Mark | U+2055 | ⁕ | E2 81 95 | ⁕ | |
Asterism | U+2042 | ⁂ | E2 81 82 | ⁂ | |
Low Asterisk | U+204E | ⁎ | E2 81 8E | ⁎ | |
Two Asterisks Aligned Vertically | U+2051 | ⁑ | E2 81 91 | ⁑ | |
Combining Asterisk Above | U+20F0 | ⃰ | E2 83 B0 | ⃰ | |
Asterisk Operator | U+2217 | ∗ | E2 88 97 | ∗ | ∗ |
Circled Asterisk Operator | U+229B | ⊛ | E2 8A 9B | ⊛ | |
Four Teardrop-Spoked Asterisk | U+2722 | ✢ | E2 9C A2 | ✢ | |
Four Balloon-Spoked Asterisk | U+2723 | ✣ | E2 9C A3 | ✣ | |
Heavy Four Balloon-Spoked Asterisk | U+2724 | ✤ | E2 9C A4 | ✤ | |
Four Club-Spoked Asterisk | U+2725 | ✥ | E2 9C A5 | ✥ | |
Heavy Asterisk | U+2731 | ✱ | E2 9C B1 | ✱ | |
Open Centre Asterisk | U+2732 | ✲ | E2 9C B2 | ✲ | |
Eight Spoked Asterisk | U+2733 | ✳ | E2 9C B3 | ✳ | |
Sixteen Pointed Asterisk | U+273A | ✺ | E2 9C BA | ✺ | |
Teardrop-Spoked Asterisk | U+273B | ✻ | E2 9C BB | ✻ | |
Open Centre Teardrop-Spoked Asterisk | U+273C | ✼ | E2 9C BC | ✼ | |
Heavy Teardrop-Spoked Asterisk | U+273D | ✽ | E2 9C BD | ✽ | |
Heavy Teardrop-Spoked Pinwheel Asterisk | U+2743 | ❃ | E2 9D 83 | ❃ | |
Balloon-Spoked Asterisk | U+2749 | ❉ | E2 9D 89 | ❉ | |
Six Teardrop-Spoked Propeller Asterisk | U+274A | ❊ | E2 9D 8A | ❊ | |
Heavy Eight Teardrop-Spoked Propeller Asterisk | U+274B | ❋ | E2 9D 8B | ❋ | |
Squared Asterisk | U+29C6 | ⧆ | E2 A7 86 | ⧆ | |
Equals With Asterisk | U+2A6E | ⩮ | E2 A9 AE | ⩮ | |
Slavonic Asterisk | U+A673 | ꙳ | EA 99 B3 | ꙳ | |
Small Asterisk | U+FE61 | ﹡ | EF B9 A1 | ﹡ | |
全形星号(Full Width Asterisk) | U+FF0A | * | EF BC 8A | * | |
Music Symbol Pedal Up Mark | U+1D1AF | 𝆯 | F0 9D 86 AF | 𝆯 | |
Tag Asterisk | U+E002A | 󠀪 | F3 A0 80 AA | ||
Light Five Spoked Asterisk | U+1F7AF | 🞯 | F0 9F 9E AF | 🞯 | |
Medium Five Spoked Asterisk | U+1F7B0 | 🞰 | F0 9F 9E B0 | 🞰 | |
Bold Five Spoked Asterisk | U+1F7B1 | 🞱 | F0 9F 9E B1 | 🞱 | |
Heavy Five Spoked Asterisk | U+1F7B2 | 🞲 | F0 9F 9E B2 | 🞲 | |
Very Heavy Five Spoked Asterisk | U+1F7B3 | 🞳 | F0 9F 9E B3 | 🞳 | |
Extremely Heavy Five Spoked Asterisk | U+1F7B4 | 🞴 | F0 9F 9E B4 | 🞴 | |
Light Six Spoked Asterisk | U+1F7B5 | 🞵 | F0 9F 9E B5 | 🞵 | |
Medium Six Spoked Asterisk | U+1F7B6 | 🞶 | F0 9F 9E B6 | 🞶 | |
Bold Six Spoked Asterisk | U+1F7B7 | 🞷 | F0 9F 9E B7 | 🞷 | |
Heavy Six Spoked Asterisk | U+1F7B8 | 🞸 | F0 9F 9E B8 | 🞸 | |
Very Heavy Six Spoked Asterisk | U+1F7B9 | 🞹 | F0 9F 9E B9 | 🞹 | |
Extremely Heavy Six Spoked Asterisk | U+1F7BA | 🞺 | F0 9F 9E BA | 🞺 | |
Light Eight Spoked Asterisk | U+1F7BB | 🞻 | F0 9F 9E BB | 🞻 | |
Medium Eight Spoked Asterisk | U+1F7BC | 🞼 | F0 9F 9E BC | 🞼 | |
Bold Eight Spoked Asterisk | U+1F7BD | 🞽 | F0 9F 9E BD | 🞽 | |
Heavy Eight Spoked Asterisk | U+1F7BE | 🞾 | F0 9F 9E BE | 🞾 | |
Very Heavy Eight Spoked Asterisk | U+1F7BF | 🞿 | F0 9F 9E BF | 🞿 |
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