Alnum: alphanumeric characters.
alnum：字母数字字符。
P {Alnum} — Alphanumeric characters.
p {alnum}—字母数字字符。
From 1 to 20 alphanumeric characters.
从1到20个字母数字字符。
The character class name for alphanumeric characters.
表示字母数字字符的字符分类名称。
The minimum number of alphanumeric characters in a password.
密码中字母数字字符的最小数目。
The node name structure consists of alphanumeric characters only.
节点名结构中只包含字母数字字符。
Scala allows function names to include non-alphanumeric characters.
Scala允许函数名字包含非字母数字的字符。
Password length minimum: 7. Non-alphanumeric characters required: 1.
密码最短长度为7，其中必须包含以下非字母数字字符：1。
Use the generally accepted alphanumeric characters and the underscore.
使用通常可接受的字母数字字符及下划线。
Four to seven lowercase and alphanumeric characters, beginning with a letter.
四到七个小写字母和字母数字字符，以字母开头。
Invalid folder name. Please, use alphanumeric characters, underscores and dashes.
“，”无效的文件夹名。请使用字母和数字，下划线和破折号。
Provides an example that strips invalid non - alphanumeric characters from a string.
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。
You'll notice that the contents consist of alphanumeric characters encoded in base64.
您将会发现密钥文件的内容由使用base64编码的字母和数字组成。
Messages must be no longer than 160 alphanumeric characters and contain no images or graphics.
消息不得超过160个字母数字字符且不包含图像或图形。
A user-defined value can contain one or more alphanumeric characters or project-file macro names.
使用者定义的值可以包含一或多个英数字元或专案-档案巨集名称。
The UDID is a long string of alphanumeric characters which will appear in place of the serial number.
UDID是出现在序列号内的一长串文字数字式字符。
Make sure that the profile name contains alphanumeric characters only and does not exceed 128 characters.
确保概要文件名只包含字母数字式字符串，并且长度没有超过128个字符。
The specified folder name is not a valid name. Please enter a name containing only alphanumeric characters.
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。
Each user name must be at least three, but not more than 10 alphanumeric characters and must begin with a letter.
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。
The output is, typically, encoded alphanumeric characters and control characters on magnetic disc or diskette .
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。
This means, upon saving, the model will validate the file name to consist only of alphanumeric characters, dots, + and -.
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。
Seven lowercase and alphanumeric characters, first four characters being alphabetic and the last three 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 three characters being alphabetic and the last four characters being digits.
七个小写字母和字母数字字符，前三个字符为字母，而后四个字符为数字。
In this test you present an image representing some alphanumeric characters that the user must read and type into a form field.
在这种测试内，您给出的是一个代表某种数字符号的图像，用户必须读懂并在表单字段内输入这些符号。
Able to encode a maximum of about 4,000 alphanumeric characters in a square image, they lend themselves nicely to placement on a narrow receipt slip.
在一个方形图像内至多可编码约4,000个字母数字符号，它们刚刚好可以替代那种窄的收据条。
The first element of simplicity found in Twitter is the amount of information you are able to enter as data, which is limited to 140 alphanumeric characters.
Twitter中的第一个简单性元素就是您能够作为数据输入的信息的数量，该数量被限制为最多140个混合数字和字母的字符。
When asked for a passphrase, make sure to enter a reasonably long string message which contains alphanumeric characters rather than a simple password string.
要求输入密码短语时，应当确保输入的密码短语具有合理的长度，包含字符和数字，不要使用简单字串。
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.
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。
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.
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.
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。
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