数字字符

We will now modify our RE as discussed before to be able to extract the alphanumeric string and number.

我们将修改正则表达式来提取由字母或数字的字符和数字。

End 2.3x5 Character Generator. This very small font is hard to read for letters, but works well for numbers.

2.3×5字符产生。这种字符非常的小，字母很难看清，用来显示数字比较不错。

Defines the character to be used to separate the integer portion of a number representation from its decimal portion.

描述定义一个字符，这个字符用于分隔数字的整数部分和小数部分。

Digital authentication image for the object image extraction method of character analysis and research, achieve code characters in the picture extraction and recognition.

详细说明：以数字验证图片为对象进行图像的分析与字符提取的方法研究，实现对验证码图片中字符的提取与识别。

In digit, spell, stroke order, stroke, SE input mode, press the key "*" to pop out "List 3 of special symbols", press UP or DOWN to move in order among the special symbols in the list, and the symbol at the position of cursor is indicated with reverse video, press left soft key "confirm", enter

在数字、拼音、笔顺、笔划、SE 输入模式下，按"*"键弹出"特殊符号表3"，按上下键键在表中的特殊符号之间按顺序移动，光标位置的字符以反白显示，按左软键"确认"，输入此字符或按右软键"退出"退出输入特殊符号。

Whether you're a typographer or graphic designer who needs a font creation powerhouse, or a hobbyist who wants to have fun creating new fonts, FontCreator has the tools you need!

该编辑器让你可以简单地选择任何安装的字体，显示每个字母，数字和特殊字符都带有描述的一整套字符。

Authors would like to thank Eugeny Rodichev for helpful discussions. Comments and bug reports are welcome .

标签是一个字母数字和下划线字符组成的序列（比如，在 C locale 设置里头，字符 A-Za-z0-9_ 都是允许的）。

Firstly, the pretreatment of character to be recognized is researched, stressed discussing the subdivisional process of character, and a kind of fast shape preserving morphological thinning algorithm is used. In the following, how to construct the structure model on the basis of characteristic point sub-stroke and their interrelation is discussed, and a kind of method that describe sub-stroke through the feature of the sequence of curvature is brought forward. Finally, the paper adopts the recognising model of printing number that base on repository, and describes the constructing method of repository.

文中首先对待识别字符的预处理进行了研究，着重探讨了字符的细化过程，采用了一种基于数学形态学的保形的快速细化算法；接着探讨了如何以特征点和子笔段及其相互关系为基础构造结构模型，提出了一种以曲率序列性质描述子笔段的方法：最后采用了以知识库为基础的印刷体数字识别模型，并详细地描述了知识库的构造方法。

The Latin, Greek, and Cyrillic alphabets, for example, are naturally broken down into letters, digits, diacritics, punctuation, and a few special characters like the space, which can all be arranged in simple linear sequences (although processing them requires adding rules about how certain sequences, such as a letter followed by its diacritics, are interpreted—this is not within the scope of a character repertoire).

例如拉丁、希腊和斯拉夫字母表自然分为字母、数字、变音符号、标点和如空格这样一些少数特殊字符，它们都能按照一种简单的线性序列排列（尽管对它们的处理需要另外的规则，如带有变音符号的字母这样的特定序列如何解释——但这不属于字符表的范畴）。

The existing system of Internet top-level domain name including the support of only 26 English letters and Arabic numerals and a hyphen 0-9, 37 characters.

现有的互联网顶级域名体系只支持包括26个英文字母、连字符和阿拉伯数字0至9在内的37个字符。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。