ASCII 表

浏览包含十进制、十六进制和字符值的完整 ASCII 集合。控制字符和可打印字符整理在一张易读的表格中。

This page is useful when you need a quick decimal-to-hex lookup for protocols, text processing or encoding work.

ASCII reference table

Dec	Hex	Char	Description

关于 ASCII

ASCII is a 7-bit character encoding standard that maps the values 0 through 127 to letters, digits, punctuation and control signals. It remains relevant because many protocols, formats and legacy systems build on top of ASCII-compatible text.

示例

32  = 0x20 = 空格
65  = 0x41 = A
10  = 0x0A = Line Feed

常见问题

ASCII 是什么?

ASCII 是一种标准字符集,为常见英文字母、数字和控制字符定义数字编码。

空格的 ASCII 代码是多少?

空格的 ASCII 代码是十进制 32,即十六进制 0x20。

ASCII 与 Unicode 有什么区别?

ASCII covers only 128 characters. Unicode is a much larger standard that supports characters from many writing systems and symbol sets.