在本例中为一个字符串表达式。
单击画布，将字符串表达式连接到日志表达式。
Click the canvas, and connect the string expression to the log expression.
第二种方法是动态执行字符串表达式包含编程命令。
The second approach is dynamic execution of string expressions that contain programming commands.
返回在另外一个指定的多维数据集上对字符串表达式求得的值。
Returns a value of a string expression evaluated over another specified cube.
模式字符串中规范的位置与字符串表达式中要进行匹配的字符位置对应。
The positions of the specifications in the pattern string correspond to the positions of the characters to be matched in the string expression.
左侧操作数为字符串表达式，右侧操作数为包含匹配所用模式的字符串。
The left operand is a string expression, and the right operand is a string containing the pattern to be used for matching.
您可以将字符串表达式中的每个字符与具体字符、通配符、字符列表或字符范围进行匹配。
You can match each character in the string expression against a specific character, a wildcard character, a character list, or a character range.
OrderDate的值是通过调用Bind表达式并向它传递GridView的关联数据源中列的名称和一个可选的数据格式字符串表达式来设置的。
The value for the OrderDate is set by calling the Bind expression and passing to it the name of the column in the GridView's associated data source and an optional data format string expression.
单击画布，然后右键单击文本表达式，选择add-Link，然后单击“Printtologutility”，从而将字符串表达式连接到日志表达式。
Click the canvas, and then connect the string expression to the log expression by right-clicking the text expression, selecting Add - Link, and then clicking the Print to log utility.
因此，正则表达式 A*B将与字符串AB 、AAB 、AAAB或任何其它以 A 开头并以单个 B 为结尾的字符串相匹配。
Therefore the regular expression A*B will match the strings AB, AAB, AAAB, or any other string starting with an A and ending with a single B.
当然，还可能有其它的格式，只需要在URL格式的字符串中修改正则表达式即可。
It is of course possible to have other formats, simply by changing he regular expression in the URL pattern string.
但是掩码字符串不如正则表达式那么灵活。
But mask strings are not as flexible as regular expressions.
例如，正则表达式abc将与字符串abc匹配，但不与def匹配。
For example, the regular expression ABC will match the string ABC but not DEF.
而其内置的字符串操纵函数(包括正则表达式)，以及程序上的特性和方便性使它成为创建简单“脚本”程序的理想语言。
And its built-in string manipulation functions (including regular expressions), as well as procedural and convenience features make it the ideal language for creating simple "scripting" programs.
清单8演示了如何使用正则表达式检查JSON字符串。
Listing 8 demonstrates how to check a JSON string with a regular expression.
这是包含被替换值替换了适当正则表达式匹配项的字符串。
This is the string that has the appropriate regular expressions matches replaced with the replacement value.
当然，正则表达式被限定为严格的字符串比较。
Of course, regular expressions are limited to strict string comparisons.
如果两种形式都不行，那么任何使用大型字符串的表达式都需要在本地计算。
If neither is possible, any expression using a large string needs to be evaluated locally.
此函数试图匹配并返回正则表达式针对源字符串定义的模式的特定发生项。
This function attempts to match and return a specific occurrence of a pattern that is defined by the regular expression against the source string.
简而言之，正则表达式描述字符串模式。
In a nutshell, a regular expression describes a string pattern.
正则表达式描述字符串的格式：使用最简单的正则表达式格式，您可以输入您希望匹配的文本。
A regular expression describes the format of a string: With the simplest form of regular expression, you input the text that you want to match.
它表示一个正则表达式并提供了使正则表达式与字符串相匹配的逻辑。
It represents a regular expression and provides the logic to match the regular expression against strings.
此函数试图匹配正则表达式针对源字符串的模式的特定发生项。
This function attempts to match a specific occurrence of the pattern that is defined by the regular expression against the source string.
如果容器名称中在数据库分区表达式后面没有空格字符，则认为剩下的字符串是表达式的一部分。
If there is no space character in the container name after the database partition expression, it is assumed that the rest of the string is part of the expression.
搜索设置包括选择是否区分大小写、将搜索字符串作为正则表达式还是文本字符串解释等。
Search Settings include choosing case sensitivity, scope, and whether or not to interpret the search string as a regular expression or as a literal string.
该应用程序使用了一些字符串方法、一些正则表达式和一些主要由正则表达式和字符串匹配所驱动的程序逻辑。
This application USES some string methods, some regular expressions, and some program logic driven mostly by regular expressions and string matches.
在vi 中，可以使用 /命令搜索字符串，这需要以字面字符串或正则表达式的形式指定要匹配的模式。
You can search for strings in vi using the / command, specifying the pattern to match either as a literal string or as a regular expression.
更好的方法是使用一种方法来计算日期，比如Calendar . get (Calendar .YEAR)，从而避免创建额外的字符串和正则表达式。
Better yet, use a method of working out the date which avoids creating extra strings and regular expression matching, such as Calendar.get (Calendar.YEAR).
为了避免重复这一过程，XPath提供了一个compile方法，只有一个参数，即字符串XPath表达式。
To avoid duplicating that process, XPath provides a method called compile , which simply takes your string XPath expression as its only argument.
URL模式：与Perl兼容的正则表达式字符串，将与客户端发送的URL进行匹配。
URL pattern: a Perl-compatible regular expression string to be matched with the URL sent by the client.
应用推荐