节点名结构中只包含字母数字字符。
The node name structure consists of alphanumeric characters only.
节点名应该只由字母数字字符组成。
The node name structure should consist of alpha-numeric characters only.
子项是字符信息项，即包含字母数字字符的项。
The child is the character information item, meaning that the item contains alphanumerical characters.
alnum：字母数字字符。
p {alnum}—字母数字字符。
从1到20个字母数字字符。
使用通常可接受的字母数字字符及下划线。
Use the generally accepted alphanumeric characters and the underscore.
消息不得超过160个字母数字字符且不包含图像或图形。
Messages must be no longer than 160 alphanumeric characters and contain no images or graphics.
密码最短长度为7，其中必须包含以下非字母数字字符：1。
Password length minimum: 7. Non-alphanumeric characters required: 1.
七个小写字母和字母数字字符，前三个字符为字母，而后四个字符为数字。
Seven lowercase and alphanumeric characters, first three characters being alphabetic and the last four characters being digits.
七个小写字母和字母数字字符，前四个字符为字母，而后三个字符为数字。
Seven lowercase and alphanumeric characters, first four characters being alphabetic and the last three characters being digits.
提供一个示例，该示例从字符串中去除无效的非字母数字字符。
Provides an example that strips invalid non - alphanumeric characters from a string.
指定的文件夹名不是有效名称。请输入仅包含字母数字字符的名称。
The specified folder name is not a valid name. Please enter a name containing only alphanumeric characters.
典型的输出是载于磁盘或软盘上的经编码的字母数字字符和控制字符。
The output is, typically, encoded alphanumeric characters and control characters on magnetic disc or diskette .
每个用户名至少要包含3个但不多于10个字母数字字符，并且必须以字母为开头。
Each user name must be at least three, but not more than 10 alphanumeric characters and must begin with a letter.
如下所示，提供的每个文件中的每一行将被转换为变形后的字母数字字符串。
As shown below, each line in every file provided will be transformed into an inflected alphanumeric string.
如何将一个修剪所有非字母数字字符从字符串的开头和结尾字符和数字的？
How would one trim all non-alphanumeric and numeric characters from the beginning and end of a string?
这些规则指定密码可以包含哪些内容，例如，密码是否应当只包含字母或字母数字字符。
These rules specify what a password can consist of, such as whether a password should consist of only alphabets or alphanumeric characters. The following rules are supported.
所有长形式选项都以两个连字符(-)开头，由数量可变的字母数字字符表示。
All long form options begin with two hyphens (-) and are represented by a variable number of alphanumeric characters. In this example, it makes sense to use the following long form option identifiers.
生成一个安全的密码，其中不包含含糊(即容易混淆的)字符，至少包含一个非字母数字字符。
Generate a single, secure password with no ambiguous, or easily confused, characters and at least one non-alphanumeric character.
这个意思是说，在保存之前，这个model会验证仅由字母数字字符，点，+和-的组合的文件名。
This means, upon saving, the model will validate the file name to consist only of alphanumeric characters, dots, + and -.
每个安全元素定义了仅在特定条件下，即当通过观察器检查时，才可见的一字母数字字符或其他独特图像。
Each secure element defines an alphanumeric character or other unique image that is visible only under certain conditions, i. e., when inspected through a viewer.
用户名应该由字母数字字符组成，并且对于组织内部所有的系统都应该是有效的结构，以便每个人只使用一个用户名。
The user name should consist of alphanumeric characters and be a valid structure for all systems within an organization so that each person only has one user name.
如果忽略掉它，regex将匹配开头为字母、包含2至9个字母数字字符以及任意数目的任何其他字符的所有字符串。
If you omit it, your regex would match any string that begins with a letter, contains two to nine alphanumeric characters, and any number of any other characters.
当您有了VectorSpace . pm模块之后，需要进行一次微小的更改以支持把所有字母数字字符扩展到向量空间中的词中。
Once you have the VectorSpace.pm module, a small change needs to be made to support the expansion of all alphanumeric characters into words in the vector space.
但是，由于它可以包含字母数字字符，因此它不适于与Sphinx结合使用，Sphinx要求索引的每条记录都有一个惟一的32位整型键。
However, because it can contain alphanumeric characters, it's inappropriate for use with Sphinx, which requires each record indexed to have a unique 32-bit integer key.
一台大型计算机的即时存取存储器可容纳多达100000个“单词”——字母或数字字符的字符串——随时可用。
The instant access memory of a large computer may hold up to 100,000 "words"—string of alphabetic or numerical characters—ready for instant use.
上面的主程序逻辑将搜索匹配简单标准的字母和数字字符串。
The main program logic above searches for letter and number strings matching our simplistic criteria.
这段代码接受来自用户的受感染数据，检查要打印的字符只有字母和数字字符以及空格符，以此来提供安全保护。
This piece of code takes up tainted data from the user, ensuring protection as it checks that the characters to be printed are only alphanumeric characters and Spaces.
在这个示例程序中，只能加密字母和数字字符(a -z、a - z和0 - 9)。
In this sample program, only alphabetic and numeric characters (a-z, a-z, and 0-9) can be ciphered.
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