HasValue is true if the node has a text value or false otherwise.
如果节点有文本值，hasvalue值为true；否则，值为false。
For example if the node-set is used in a Boolean context, the only processing needed is to test whether it is empty.
例如，如果该节点集在布尔型上下文中使用，唯一需要的处理就是测试它是否是空的。
This function returns an anonymous visitor function that will jump to the next node if the node is not of the correct type.
此函数返回一个匿名访问者函数，如果节点的类型不正确，则该函数将跳转到下一个节点。
You can set the security profile property at the message flow level, so that a node can inherit it if the node security profile property is left blank.
您可以在消息流级设置安全性配置文件属性，以便在节点安全性配置文件的属性留空时，节点能够继承这些属性。
The commands shown above will fail if the node or database is already catalogued. If you experience any failures, uncatalog the node or database and try again.
如果已经对节点或者数据库进行了编目，那么上面显示的命令将失败。
If the node is displayed, expand it.
如果出现节点，请展开节点。
If the node is collapsed at creation time, the expanded value is false, if it is expanded the value is true.
如果节点在创建时折叠，expanded值将为false，而在展开的情况下该值将为true。
If the node will be started on a machine different from the domain manager's host, then the host name of the machine where the node is run needs to be specified instead of localhost.
如果将在与域管理器的主机不同的计算机上启动节点，则需要指定将运行节点的计算机的名称，而不是指定localhost。
If the node will be started on a machine different from the domain manager's host, then the host name of the machine where the node is run needs to be specified instead of localhost.
如果将在与域管理器的主机不同的计算机上启动节点，则需要指定将运行节点的计算机的名称，而不是指定localhost。
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