最近修改网页，偶然发现了左向箭头和右向箭头的2个符号的编码，一时好奇，抓来记录一下。

左向箭头

← ←

To produce a left arrow:

• Windows: Alt + 27
• Linux (Gnome): Ctrl + Shift + U 2190
• Microsoft Office: <–
• Unicode: 0x2190
• HTML: &larr;
• HTML decimal: &#8592;
• HTML hexadecimal: &#x2190;

右向箭头

→ &rarr;

Unformatted copy/paste:
→
To make a right arrow character:

• Windows: Alt 26 (on the numerical keyboard, with Num lock on)
• Linux (Gnome): AltGr i (X Window System)Ctrl ⇧ Shift u 2192 ⏎ Return (or Space)
• Microsoft Office, LibreOffice, OpenOffice: –>
• Unicode: 0x2190
• HTML: &rarr;
• HTML decimal: &#8594;
• HTML hexadecimal: &#x2192;
• LATEX：\rightarrow