MathJax 支持的 Latex 符号总结(各种箭头符号)

箭头符号

latex	显示效果
\uparrow	↑
\downarrow	↓
\Uparrow	⇑
\Downarrow	⇓
\updownarrow	↕
\Updownarrow	⇕
\rightarrow	→
\leftarrow	←
\Rightarrow	⇒
\Leftarrow	⇐
\leftrightarrow	↔
\Leftrightarrow	⇔
\longrightarrow	⟶
\longleftarrow	⟵
\Longrightarrow	⟹
\Longleftarrow	⟸
\longleftrightarrow	⟷
\Longleftrightarrow	⟺

更多的箭头符号

latex	显示效果
\mapsto	↦
\longmapsto	⟼
\hookleftarrow	↩
\hookrightarrow	↪
\leftharpoonup	↼
\rightharpoonup	⇀
\leftharpoondown	↽
\rightharpoondown	⇁
\rightleftharpoons	⇌
\leadsto	⇝
\nearrow	↗
\searrow	↘
\swarrow	↙
\nwarrow	↖
\nleftarrow	↚
\nrightarrow	↛
\nLeftarrow	⇍
\nRightarrow	⇏
\nleftrightarrow	↮
\nLeftrightarrow	⇎
\dashrightarrow	⇢
\dashleftarrow	⇠
\leftleftarrows	⇇
\leftrightarrows	⇆
\Lleftarrow	⇚
\twoheadleftarrow	↞
\leftarrowtail	↢
\looparrowleft	↫
\leftrightharpoons	⇋
\curvearrowleft	↶
\circlearrowleft	↺
\Lsh	↰
\upuparrows	⇈
\upharpoonleft	↿
\downharpoonleft	⇃
\multimap	⊸
\leftrightsquigarrow	↭
\rightrightarrows	⇉
\rightleftarrows	⇄
\rightrightarrows	⇉
\rightleftarrows	⇄
\twoheadrightarrow	↠
\rightarrowtail	↣
\looparrowright	↬
\rightleftharpoons	⇌
\curvearrowright	↷
\circlearrowright	↻
\Rsh	↱
\downdownarrows	⇊
\upharpoonright	↾
\downharpoonright	⇂
\rightsquigarrow	⇝