add zn-CN translation for nodes:common,function,storage

This commit is contained in:
JIYE YU
2020-01-28 13:39:41 +09:00
parent 504d13943d
commit 7ffd37d9cb
18 changed files with 658 additions and 0 deletions

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="inject">
<p>手动或定期得将消息注入流中消息的payload可以为多种类型包括字符串JavaScript对象或当前时间</p>
<h3>输出</h3>
<dl class="message-properties">
<dt>payload<span class="property-type">various</span></dt>
<dd>指定的消息的payload</dd>
<dt class="optional">topic <span class="property-type">字符串</span></dt>
<dd>可以在节点中配置的可选属性</dd>
</dl>
<h3>详细</h3>
<p>通过使用特定的payload值注入节点可以启动流默认payload是当前时间的时间戳以毫秒为单位自1970年1月1日起</p>
<p>该节点还支持注入字符串数字布尔值JavaScript对象或流/全局上下文值</p>
<p>默认情况下节点可以通过在编辑器中单击节点按钮来手动触发同时也可以被设置为定期或按计划注入</p>
<p>另一个可选的设置是在每次启动流时注入一次</p>
<p>可以指定的最大<i>间隔</i>596/24 使scheduler</p>
<p><b>注意</b>:选项<i>“时间间隔” </i><i>特定时间 </i>使用了标准cron系统。这意味着因此“20分钟”并不表示在此之后20分钟而是每小时的20分钟40分钟。如果您希望设定为从现在开始的每20分钟那么请使用<i>“间隔” </i>选项</p>
<p><b>注意</b>: 使payload</p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="debug">
<p>调试侧边栏选项卡和运行时日志中显示选定的消息属性 默认情况下它会显示<code> msg.payload </code>JSONata</p>
<h3>详细</h3>
<p>调试侧边栏会提供已发消息的结构化视图方便您查询消息的结构</p>
<p>JavaScript对象和数组可以根据需要来折叠或扩展缓冲区对象可以显示为原始数据也可以显示为字符串</p>
<p>对任意条消息调试侧边栏还会显示接收消息的时间发送消息的节点以及消息类型等信息单击源节点ID将在工作区中显示该节点</p>
<p>节点上的按钮可用于启用或禁用其输出建议禁用或删除所有未使用的调试节点</p>
<p>还可以通过配置节点将所有消息发送到运行时日志或将简短的数据32个字符内在调试节点下的状态文本上显示</p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="complete">
<p>当另一个节点完成对消息的处理时触发流</p>
<h3>详细</h3>
<p>如果一个节点通知运行时它已完成消息的处理该节点可用于触发第二个流</p>
<p>这个节点可以与没有输出端口的节点一起使用例如在使用电子邮件发送节点来发送邮件后触发一个流</p>
<p>此节点只能被设置为处理流中某个所选节点的事件与Catch节点不同您不能指定所有节点模式并以流中的所有节点为目标</p>
<p>并非所有节点都会触发此事件这取决于它们是否支持于Node-RED 1.0中引入的此功能</p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="catch">
<p>捕获由同一标签页上的节点引发的错误</p>
<h3>输出</h3>
<dl class="message-properties">
<dt>error.message <span class="property-type">字符串</span></dt>
<dd>错误消息</dd>
<dt>error.source.id <span class="property-type">字符串</span></dt>
<dd>引发错误的节点的ID</dd>
<dt>error.source.type <span class="property-type">字符串</span></dt>
<dd>引发错误的节点的类型</dd>
<dt>error.source.name <span class="property-type">字符串</span></dt>
<dd>引发错误的节点的名称如果已设置</dd>
</dl>
<h3>详细</h3>
<p>如果节点在处理消息时抛出错误则流程通常会停止该节点可用于捕获那些错误并通过专用流程进行处理</p>
<p>默认情况下该节点将捕获同一标签页上任何节点抛出的错误或者它可以针对特定节点或配置为仅捕获另一个目标捕获节点尚未捕获的错误</p>
<p>当错误发生时所有匹配的catch节点都会收到错误消息</p>
<p>如果在子流中发送了错误则该错误将由子流中的任意捕获节点处理如果子流中不存在捕获节点则那错误将被传播到子流实例所在的标签页</p>
<p>如果消息已经具有<code>error</code><code>error</code><code>_error</code></p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="status">
<p>获取在同一标签页上的其他节点的状态消息</p>
<h3>输出</h3>
<dl class="message-properties">
<dt>status.text <span class="property-type">字符串</span></dt>
<dd>状态文本</dd>
<dt>status.source.type <span class="property-type">字符串</span></dt>
<dd>报告状态的节点的类型</dd>
<dt>status.source.id <span class="property-type">字符串</span></dt>
<dd>报告状态的节点的ID</dd>
<dt>status.source.name <span class="property-type">字符串</span></dt>
<dd>报告状态的节点的名称如果已设置</dd>
</dl>
<h3>详细</h3>
<p>该节点不包含<code>payload</code></p>
<p>默认情况下节点会获取同一工作空间标签页上报告所有节点的状态可以通过配置来设定目标节点</p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="link in">
<p>在流之间创建虚拟连线</p>
<h3>详细</h3>
<p>该节点可以连接到任何标签页上存在的任何<code>link out</code></p>
<p>仅当选择链接节点时才会显示链接节点之间的链接如果有指向另一个选项卡的链接则显示一个虚拟节点单击该虚拟节点将带您到相应的选项卡</p>
<p><b>注意</b></p>
</script>
<script type="text/x-red" data-help-name="link out">
<p>在流之间创建虚拟连线</p>
<h3>详细</h3>
<p>该节点可以连接到任何标签页上存在的任何<code>link in</code></p>
<p>仅当选择链接节点时才会显示链接节点之间的链接如果有指向另一个选项卡的链接则显示一个虚拟节点单击该虚拟节点将带您到相应的选项卡</p>
<p><b>注意</b></p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="comment">
<p>可用于向流添加注释的节点</p>
<h3>详细</h3>
<p>编辑面板接受Markdown语法输入的文本将在信息侧面板中显示</p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="unknown">
<p>您安装的Node-RED无法识别该节点的类型</p>
<h3>详细</h3>
<p><i>如果在此状态下部署节点其配置会被保存但是在安装缺少的类型之前流不会开始</i></p>
<p>使用<code> Menu-Manage Palette </code>使<b>npm install &lt;module&gt;</b>Node-Red</p>
<p>另一种可能是您已经安装了此节点类型但是缺少必须的依赖项您应检查Node-RED的启动日志中是否有与缺少节点有关的错误消息</p>
<p>以上方法都不适用时您可以联系该流的作者以获取缺少的节点类型的副本</p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="function">
<p>定义对接收到的消息进行处理的JavaScript代码函数的主体</p>
<p>输入消息在名为<code>msg</code>JavaScript</p>
<p>通常<code>msg</code><code>msg.payload</code></p>
<p>该函数一般会返回一个消息对象或多个消息对象但也可以为了停止流而什么都不返回</p>
<h3>详细</h3>
<p>请参见<a target="_blank" href="http://nodered.org/docs/writing-functions.html">在线文档</a></p>
<h4>传送消息</h4>
<p>要将消息传递到流中的下一个节点请返回消息或调用<code>node.send(messages)</code></p>
<p>它将返回/send:</p>
<ul>
<li>单个消息对象 - 传递给连接到第一个输出的节点</li>
<li>消息对象数组传递给连接到相应输出的节点</li>
</ul>
<p>如果数组元素是数组则将多个消息发送到相应的输出</p>
<p>无论return方法是单个值还是数组元素如果返回值为null则不会发送任何消息</p>
<h4>日志输出和错误处理</h4>
<p>使用以下功能输出日志信息和输出错误</p>
<ul>
<li><code>node.log("Log message")</code></li>
<li><code>node.warn("Warning")</code></li>
<li><code>node.error("Error")</code></li>
</ul>
</p>
<p>使用catch节点可以进行错误处理 要由catch节点处理请将<code>msg</code><code>node.error</code></p>
<pre>node.error("Error",msg);</pre>
<h4>访问节点信息</h4>
<p>您可以使用以下属性来在代码中引用节点ID和名称</p>
<ul>
<li><code>node.id</code> - ID</li>
<li><code>node.name</code> - </li>
</ul>
<h4>使用环境变量</h4>
<p>环境变量可以通过<code>env.get("MY_ENV_VAR")</code>访</p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="switch">
<p>按属性值来分配消息的传送路线</p>
<h3>详细</h3>
<p>根据接收到的消息评估指定的规则然后将消息发送到与匹配的规则相对应的输出端口</p>
<p>可以将节点设置为一旦发现一个匹配的规则则停止后续的匹配</p>
<p>对于评估规则可以使用消息属性流上下文/全局上下文属性环境变量和JSONata表达式的评估结果</p>
<h4>规则</h4>
<p>有四种规则</p>
<ol>
<li><b></b></li>
<li><b>顺序</b></li>
<li><b>JSONata表达式</b></li>
<li><b>其他</b></li>
</ol>
<h4>注释</h4>
<p><code>is true/false</code><code>is null</code> </p>
<p><code>is empty</code><code>null</code><code>undefined</code></p>
<h4>处理消息序列</h4>
<p>默认情况下节点不会修改<code>msg.parts</code></p>
<p>可以启用<b>重建消息序列</b><code>nodeMessageBufferMaxLength</code></p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="change">
<p>设置更改删除或移动消息流上下文或全局上下文的属性</p>
<p>如果指定了多个规则则将按定义的顺序来应用它们</p>
<h3>详细</h3>
<p>可用的操作有</p>
<dl class="message-properties">
<dt>设置</dt>
<dd>设置一个属性该值可以是多种不同类型也可以从现有消息或上下文属性中获取</dd>
<dt>置换</dt>
<dd>搜索并替换属性 如果启用了正则表达式则可以为replace with属性指定捕获组例如<code>$1</code> </dd>
<dt>删除</dt>
<dd>删除一个属性</dd>
<dt>移动</dt>
<dd>移动或者重命名一个属性</dd>
</dl>
<p>类型"expression"使用<a href="http://jsonata.org/" target="_new">JSONata</a></p>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="range">
<p>将数值映射为另一个区间的数值</p>
<h3>输入</h3>
<dl class="message-properties">
<dt>payload<span class="property-type">数值</span></dt>
<dd>payload<i>一定</i>. </dd>
</dl>
<h3>输出</h3>
<dl class="message-properties">
<dt>payload<span class="property-type">数值</span></dt>
<dd>被映射到新区间的数值</dd>
</dl>
<h3>详细</h3>
<p>该节点将线性缩放所接收到的数值在默认情况下结果不限于节点中定义的范围</p>
<p><i>缩放并限制到目标范围</i></p>
<p><i>在目标范围内缩放并折叠</i></p>
<p>例如输入0-10映射到0-100</p>
<table style="outline-width:#888 solid thin">
<tr><th width="80px">模式</th><th width="80px"></th><th width="80px"></th></tr>
<tr><td><center>scale</center></td><td><center>12</center></td><td><center>120</center></td></tr>
<tr><td><center>limit</center></td><td><center>12</center></td><td><center>100</center></td></tr>
<tr><td><center>wrap</center></td><td><center>12</center></td><td><center>20</center></td></tr>
</table>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="template">
<p>根据提供的模板设置属性</p>
<h3>输入</h3>
<dl class="message-properties">
<dt>msg <span class="property-type">object</span></dt>
<dd>一个msg对象其中包含着用于填充模板的信息</dd>
<dt class="optional">template <span class="property-type">string</span></dt>
<dd><code>msg.payload</code>msg</dd>
</dl>
<h3>Outputs</h3>
<dl class="message-properties">
<dt>msg <span class="property-type">object</span></dt>
<dd>由来自传入msg的属性来填充已配置的模板后输出的带有属性的msg</dd>
</dl>
<h3>详细</h3>
<p>默认情况下使用<i><a href="http://mustache.github.io/mustache.5.html" target="_blank">mustache</a></i>格式如有需要也可以切换其他格式</p>
<p>例如:
<pre>Hello {{payload.name}}. Today is {{date}}</pre>
<p>receives a message containing:
<pre>{
date: "Monday",
payload: {
name: "Fred"
}
}</pre>
<p>输出的消息将会是:
<pre>Hello Fred. Today is Monday</pre>
<p>也可以使用流上下文或全局上下文中的属性<code>{{flow.name}}</code><code>{{global.name}}</code><code>store</code>使<code>{{flow[store].name}}</code><code>{{global[store].name}}</code>
<p><b>注意</b>默认情况下,<i>mustache</i>将在其替换的值中转义任何非字母数字或HTML实体为了防止这种情况请使用<code>{{{triple}}}</code>
</script>

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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="delay">
<p>对通过节点的消息进行延迟发送或限制</p>
<h3>输入</h3>
<dl class="message-properties">
<dt class="optional">delay <span class="property-type">数值</span></dt>
<dd>设置要应用于消息的延迟以毫秒为单位仅当节点配置为允许消息去覆盖配置的默认延迟间隔时此选项才适用</dd>
<dt class="optional">reset</dt>
<dd>如果接收到的消息将此属性设置为任何值则将清空该节点保留的所有的未发送消息</dd>
<dt class="optional">flush</dt>
<dd>如果接收到的消息的此属性设置为任何值则将立即发送该节点保留的所有未发送消息</dd>
</dl>
<h3>详细</h3>
<p>当配置为延迟发送消息时延迟间隔可以是一个固定值一个范围内的随机值或为每个消息动态设置</p>
<p>当配置为对消息进行限制时它们的传递将分散在配置的时间段内状态显示队列中当前的消息数可以选择在中间消息到达时丢弃它们</p>
<p>速率限制可以应用于所有消息也可以根据<code>msg.topic</code></p>
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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="trigger">
<p>触发后将会发送一条消息如果被拓展或重置则可以选择发送第二条消息</p>
<h3>输入</h3>
<dl class="message-properties">
<dt class="optional">reset</dt>
<dd>如果收到带有此属性的消息则将清除当前正在进行的任何超时或重复且不会触发任何消息</dd>
</dl>
<h3>详细</h3>
<p>该节点可用于在流中创建一个超时 默认情况下当它收到一条消息时它将发送一条带有<code>1</code>payload250payload<code>0</code>使Raspberry Pi GPIOLED</p>
<p>可以将发送的每个消息的payload配置为各种值包括不发送任何内容的选项例如将初始消息设置为<i>nothing</i></p>
<p>如果设置为<i>字符串</i>类型,则该节点支持<i>mustache</i>模板语法</p>
<p>如果节点收到具有<code>reset</code><code>payload</code></p>
<p>可以将节点配置为以固定的时间间隔重新发送消息直到被收到的消息重置为止</p>
<p>可选可以将节点配置为将带有<code>msg.topic</code></p>
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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="exec">
<p>运行系统命令并返回其输出</p>
<p>可以将节点配置为等待命令完成或者在命令生成时发送其输出</p>
<p>运行的命令可以在节点中配置也可以由收到的消息提供</p>
<h3>输入</h3>
<dl class="message-properties">
<dt class="optional">payload <span class="property-type">字符串</span></dt>
<dd>如果这样配置则将被附加到执行命令中</dd>
<dt class="optional">kill <span class="property-type">字符串</span></dt>
<dd>指定发送到现有的exec节点进程的kill信号类型</dd>
<dt class="optional">pid <span class="property-type">数值|字符串</span></dt>
<dd>要杀死的现有exec节点进程的进程ID</dd>
</dl>
<h3>输出</h3>
<ol class="node-ports">
<li>标准输出(stdout)
<dl class="message-properties">
<dt>payload <span class="property-type">字符串</span></dt>
<dd>命令的标准输出</dd>
</dl>
<dl class="message-properties">
<dt>rc <span class="property-type">object</span></dt>
<dd>仅执行模式一个返回代码对象的副本在端口3上也可用</dd>
</dl>
</li>
<li>标准error输出(stderr)
<dl class="message-properties">
<dt>payload <span class="property-type">字符串</span></dt>
<dd>命令的标准错误输出</dd>
</dl>
<dl class="message-properties">
<dt>rc <span class="property-type">object</span></dt>
<dd>仅执行模式一个返回代码对象的副本在端口3上也可用</dd>
</dl>
</li>
<li>返回代码
<dl class="message-properties">
<dt>payload <span class="property-type">object</span></dt>
<dd>一个包含返回代码以及<code>message</code><code>signal</code></dd>
</dl>
</li>
</ol>
<h3>详细</h3>
<p>默认情况下使用<code>exec</code><code>{code0}</code></p>
<p>可选可以选择使用<code>spawn</code>stdoutstderr<code>{code0}</code></p>
<p>错误可能会在第三个端口<code>msg.payload</code><code>message</code><code>signal</code></p>
<p>运行的命令是在节点内定义的带有附加<code>msg.payload</code></p>
<p>带空格的命令或参数应该用引号引起来<code>这是一个参数</code></p>
<p>返回的<code>payload</code>通常是<i>字符串</i>类型除非检测到非UTF8字符在这种情况下它会是<i>buffer</i></p>
<p>节点处于活动状态时该节点的状态图标和PID将可见对此更改可以通过<code>Status</code></p>
<h4>杀死进程</h4>
<p>发送<code>msg.kill</code><code>msg.kill</code><code>SIGINT</code><code>SIGQUIT</code><code>SIGHUP</code><code>SIGTERM</code></p>
<p>如果节点有多个进程在运行则还必须设置<code>msg.pid</code>PID</p>
<p>如果<code>Timeout</code></p>
<p>提示如果运行Python应用程序则可能需要使用<code>-u</code></p>
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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="file">
<p><code>msg.payload</code></p>
<h3>输入</h3>
<dl class="message-properties">
<dt class="optional">filename<span class="property-type">字符串</span></dt>
<dd>如果未在节点中配置则此可选属性可以设置文件名</dd>
</dl>
<h3>输出</h3>
<p>写入完成后输入消息将发送到输出端口</p>
<h3>详细</h3>
<p>每个消息payload将添加到文件的末尾可以选择在每个消息之间添加一个换行符\n</p>
<p>如果使用<code>msg.filename</code>使</p>
<p>可以将其配置为覆盖整个文件而不是在文件后添加段落例如在将二进制数据写入文件例如图像应使用此选项并且应禁用添加换行符的选项</p>
<p>可以从编码列表中指定写入文件的数据的编码</p>
<p>您可以将此节点配置为删除文件</p>
</script>
<script type="text/x-red" data-help-name="file in">
<p>以字符串或二进制缓冲区的形式读取文件的内容</p>
<h3>输入</h3>
<dl class="message-properties">
<dt class="optional">filename<span class="property-type">字符串</span></dt>
<dd>如果未在节点配置中设置该属性可以选择要读取的文件名</dd>
</dl>
<h3>输出</h3>
<dl class="message-properties">
<dt>payload <span class="property-type">字符串 | buffer</span></dt>
<dd>文件的内容可以是字符串也可以是二进制的buffer</dd>
<dt class="optional">filename <span class="property-type">字符串</span></dt>
<dd>如果未在节点配置中设置该属性可以选择要读取的文件名</dd>
<dt class="optional">error <span class="property-type">object</span></dt>
<dd><i>已不推荐使用</i>: <code>payload</code><code>error</code> </dd>
</dl>
<h3>详细</h3>
<p>文件名应该是绝对路径否则将相对于Node-RED进程的工作目录</p>
<p>在Windows上可能需要使用转义路径分隔符例如<code>\\Users\\myUser</code></p>
<p>可以选择将文本文件拆分为几行每行输出一条消息或者将二进制文件拆分为较小的buffer块-块大小取决于操作系统但通常为64kLinux/Mac或41kWindows</p>
<p>当拆分为多条消息时每条消息将具有<code>parts</code></p>
<p>如果输出格式为字符串则可以从编码列表中指定输入数据的编码</p>
<h4>旧版的错误处理</h4>
<p>在Node-RED 0.17之前如果此节点在读取文件时遇到错误它将发送一条不包含<code>msg.payload</code><code>msg.error</code><code>msg.error</code></p>
<p>应该使用Catch节点来捕获并处理错误</p>
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<!--
Copyright JS Foundation and other contributors, http://js.foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-help-name="watch">
<p>监视目录或文件中的更改</p>
<p>您可以输入用逗号分隔的目录和/或文件的列表您需要在所有带有空格的地方加上引号...</p>
<p>在Windows上必须在任何目录名称中使用双反斜杠<code>\\</code></p>
<p>实际更改的文件的完整文件名将放入<code>msg.payload</code><code>msg.filename</code><code>msg.topic</code></p>
<p><code>msg.file</code><code>msg.type</code><i>file</i><i>directory</i><code>msg.size</code></p>
<p>当然在Linux中<i>everything</i></p>
<p><b>注意</b>使</p>
</script>