http://www.freeformatter.com/html-entities.html
| Character | Entity Name | Entity Number | Description |
|---|---|---|---|
| |   | Space | |
| ! | ! | Exclamation mark | |
| " | " | Quotation mark | |
| # | # | Number sign | |
| $ | $ | Dollar sign | |
| % | % | Percent sign | |
| & | & | & | Ampersand |
| ‘ | ' | Apostrophe | |
| ( | ( | Opening/Left Parenthesis | |
| ) | ) | Closing/Right Parenthesis | |
| * | * | Asterisk | |
| + | + | Plus sign | |
| , | , | Comma | |
| - | - | Hyphen | |
| . | . | Period | |
| / | / | Slash | |
| 0 | 0 | Digit 0 | |
| 1 | 1 | Digit 1 | |
| 2 | 2 | Digit 2 | |
| 3 | 3 | Digit 3 | |
| 4 | 4 | Digit 4 | |
| 5 | 5 | Digit 5 | |
| 6 | 6 | Digit 6 | |
| 7 | 7 | Digit 7 | |
| 8 | 8 | Digit 8 | |
| 9 | 9 | Digit 9 | |
| : | : | Colon | |
| ; | ; | Semicolon | |
| < | < | < | Less-than |
| = | = | Equals sign | |
| > | > | > | Greater than |
| ? | ? | Question mark | |
| @ | @ | At sign | |
| A | A | Uppercase A | |
| B | B | Uppercase B | |
| C | C | Uppercase C | |
| D | D | Uppercase D | |
| E | E | Uppercase E | |
| F | F | Uppercase F | |
| G | G | Uppercase G | |
| H | H | Uppercase H | |
| I | I | Uppercase I | |
| J | J | Uppercase J | |
| K | K | Uppercase K | |
| L | L | Uppercase L | |
| M | M | Uppercase M | |
| N | N | Uppercase N | |
| O | O | Uppercase O | |
| P | P | Uppercase P | |
| Q | Q | Uppercase Q | |
| R | R | Uppercase R | |
| S | S | Uppercase S | |
| T | T | Uppercase T | |
| U | U | Uppercase U | |
| V | V | Uppercase V | |
| W | W | Uppercase W | |
| X | X | Uppercase X | |
| Y | Y | Uppercase Y | |
| Z | Z | Uppercase Z | |
| [ | [ | Opening/Left square bracket | |
| \ | \ | Backslash | |
| ] | ] | Closing/Right square bracket | |
| ^ | ^ | Caret | |
| _ | _ | Underscore | |
| ` | ` | Grave accent | |
| a | a | Lowercase a | |
| b | b | Lowercase b | |
| c | c | Lowercase c | |
| d | d | Lowercase d | |
| e | e | Lowercase e | |
| f | f | Lowercase f | |
| g | g | Lowercase g | |
| h | h | Lowercase h | |
| i | i | Lowercase i | |
| j | j | Lowercase j | |
| k | k | Lowercase k | |
| l | l | Lowercase l | |
| m | m | Lowercase m | |
| n | n | Lowercase n | |
| o | o | Lowercase o | |
| p | p | Lowercase p | |
| q | q | Lowercase q | |
| r | r | Lowercase r | |
| s | s | Lowercase s | |
| t | t | Lowercase t | |
| u | u | Lowercase u | |
| v | v | Lowercase v | |
| w | w | Lowercase w | |
| x | x | Lowercase x | |
| y | y | Lowercase y | |
| z | z | Lowercase z | |
| { | { | Opening/Left curly brace | |
| | | | | Vertical bar | |
| } | } | Closing/Right curly brace | |
| ~ | ~ | Tilde |
原文：http://www.cnblogs.com/keep-walking/p/4219913.html