The -f operator returns true only if the file exists.
只有在文件存在时，-f操作符才返回true。
Current implementation of Encina Connector returns true.
当前的Encina连接器的实现返回true。
If validate returns true, the form is submitted to the server.
如果validate返回true，则表单被提交到服务器。
Clicking OK returns true, and the server-side script executes.
单击确定返回true，执行服务器端脚本。
If the predicate returns true, it adds it to the results array.
如果谓词返回true，则它将此值添加到结果数组中。
The system returns true if named parameters are supported. For example
如果支持命名参数，则系统返回true。
Once Selenium detects that the condition returns true, it will stop waiting.
一旦Selenium检测到条件返回为真，它将停止等待。
Thus, whenever the service returns true, the loop exits and the Reply activity runs.
这样，在服务返回True时就会退出循环，接着运行Reply活动。
IsPresent returns true if the file specified by the path is actually present on the disk.
如果路径指定的文件在磁盘中存在，isPresent返回真。
The eq function compares an argument to the context and returns true if they are the same.
eq函数将参数同上下文比较，如果它们相同，就返回true。
PROCESS_SKIP — the visitor isn't interested in the node's children, so accept returns true.
PROCESS_SKIP——访问程序对该节点的子节点不感兴趣，所以accept返回true。
This property works just like IsPostBack but returns true when a cross-page postback has occurred.
这个属性类似现有的IsPostBack但是只有跨页投递发生时返回true。
This method returns true if the file or directory is successfully deleted. Otherwise it returns false.
若文件或目录被成功删除，此方法将返回true，否则返回false。
Is not validated predicate returns true if the XML document is not validated against specified schema.
如果没有根据指定的模式验证XML文档，IS NOT VALIDATED谓词返回true。
Similarly, if comp(a,b) returns true , and comp(b,c) returns true , then comp(a,c) must also return true .
类似的，如果comp(a,b)为true，comp(b,c)为true，那么comp(a,c)也一定为true。
One is to invoke the logon method first, and when the method invocation returns true, invoke a method to fetch tasks consequently.
一种解决方案是首先调用登录方法，然后当该方法调用返回true时，调用一个方法来获取相应的任务。
This returns true if the MDB is using container-managed transactions and the method in question has a transaction attribute of Required.
如果MDB正在使用容器托管的事务，而且要处理的方法具有Required事务属性，那么isDeliveryTransacted会返回true。
You can test this using the instanceof operator, which returns true if the object is a member of the indicated class, as shown in Listing 14.
可以使用instance of操作符来测试这一点，如果对象是指定类的成员，则返回true，如清单14所示。
Of course, since the provided services do not exist, the implementation of the SOARemoteService simply returns true for the execute operation.
当然，由于所提供的服务不存在，所以SOARemoteService的实现仅仅对execute操作返回真。
If we don't want to implement this method, we still have the option to implement our own IContextInformationValidator that always returns true.
如果我们不想实现这个方法，还可以选择实现我们自己的IContextInformationValidator，它总是返回true。
Words are separated by hyphens, and the function's name ends with a question mark, indicating it is a predicate in that it returns true or false.
单词均以连字符分隔，并且此函数的名字是以一个问号结尾的，用以表示此函数是一个断言，因它会返回true或 false。
It returns true if the instance element is declared to be of a type directly or indirectly derived from the type identified by the type QName.
如果实例元素声明为具有直接或间接来自类型QName指定的类型，则返回true。
It takes the MySQL database connection object as a parameter and returns true if the database close operation was successful and false if it failed.
它以MySQL数据库连接对象作为参数；如果数据库关闭操作成功，它就返回true，否则返回false。
The getopts command returns true if an option is found, so a common option processing paradigm uses a while loop with a case statement as in this example.
如果找到一个选项，则getopts命令返回true，因此常见的选项处理范例使用带case语句的while 循环，本例中就是如此。
The db2_execute statement returns true or false when completed, and the result set of the query must be bound to a variable before the SQL statement is run.
db2_execute语句在完成时将返回true或false，而且必须将查询的结果集绑定到变量，然后才能运行sql语句。
It returns true if the element in the instance document is declared to be in the substitution group headed by the element identified by the element QName.
如果实例文档中的元素被声明为位于以元素QName指定的元素为首的代替组中，则返回true。
For instance, a good test assertion is a JUnit test that returns true if and only if the SOAP envelope returned by a Web service is identical to a pre-defined XML document.
例如，一个较好的测试断言为JUnit测试，即当且仅当Web服务返回的SOAP信封与预定义的XML文档完全相同时，返回true。
Here, main calls phpinfo , which returns TRUE.
在这里，main将调用phpinfo，后者将返回TRUE。
Returns true if a connection with the LDAP server is established.
如果与LDAP服务器的连接建立，就会返回true。
If the fetch function returns TRUE, the catalog id value is defined in the catalog table.
如果fetch函数返回TRUE，则catalog表中已经定义了这个catalogid值。
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