# hash/sharp 井号
* asterisk [ˈæstərɪsk] 星号
+ plus/positive 加号
- minus/negative/dash 减号
_ underscore 下划线
/ slash/slant 斜杠
\ backslash/escape 反斜杠

` back quote
~ tilde [ˈtɪldə] 
! Exclamation mark, exclamation point, or bang
@ at 
# Octothorpe, number, pound, sharp, or hash
$ dollar
% percent
^ caret [ˈkærət]
& ampersand  [ˈæmpəsænd]
* Asterisk, mathematical multiplication symbol, and sometimes referred to as star
( open parenthesis
) close parenthesis
+ plus
= equal
[ open bracket
] closed bracket
{ Open brace, squiggly [ˈskwɪɡli] brackets, or curly bracket
} Close brace, squiggly brackets, or curly bracket
; semicolon  [ˈsemikoʊlən]
: colon
' quote
" double quote
| Pipe, or, or vertical bar
, comma
< Less than or angle brackets
> Greater than or angle brackets
. period
? Question mark

≮     is not less than 
≯     is not more than
≤     is less than or equal to 
≥     is more than or equal to 
'     apostrophe 省略号,英文中省略字符用的撇号;所有格符号
‰     per mille
∞     infinity 无限大号 
∝     varies as 与…成比例 
√     (square) root 平方根 
∵     since; because 因为 
《 》  French quotes 法文引号;书名号 
∴     hence 所以 
…     ellipsis 省略号 
∷     equals, as (proportion) 等于，成比例 
¨     tandem [ˈtændəm] colon 双点号
∠     angle 角 
∶     ditto [ˈdɪtoʊ] 双点号
⌒     semicircle [ˈsemisɜːrkl] 半圆 
‖     parallel [ˈpærəlel] 双线号 
⊙     circle 圆 
／     virgule 斜线号 
○     circumference [sərˈkʌmfərəns] 圆周
～     swung [swʌŋ] dash 代字号 
△     triangle 三角形 
§     section; division 分节号 
⊥     perpendicular [ˌpɜːrpənˈdɪkjələr] to 垂直于 
→     arrow 箭号；参见号 
∪     union of 并，合集
∩     intersection of 交，通集 
∫     the integral of …的积分 
±     plus or minus 正负号 
∑     summation of 总和 
×     is multiplied by 乘号 
°     degree 度 
÷     is divided by 除号 
′     minute 分
″     second 秒 
≠     is not equal to 不等于号 
≡     is equivalent to 全等于号 
℃     Celsius degree 摄氏度 
≌     is equal to or approximately equal to 等于或约等于号