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问题 I'm using ZeroMQ with NACK-Oriented Reliable Multicast ( NORM ) norm:// protocol. The documentation contains only a Python code, so here is my C++ code: PUB Sender : string sendHost = "norm://2,127.0.0.1:5556";// <NormNodeId>,<addr:port> string tag = "MyTag"; string sentMessage = "HelloWorld"; string fullMessage = tag + sentMessage; zmq::context_t *context = new zmq::context_t( 20 ); zmq::socket_t publisher( *context, ZMQ_PUB ); zmq_connect( publisher, sendHost.c_str() ); zmq_send( publisher,

问题 Please consider the following code: #include <iostream> #include <unordered_set> struct MyStruct { int x, y; double mutable z; MyStruct(int x, int y) : x{ x }, y{ y }, z{ 0.0 } { } }; struct MyStructHash { inline size_t operator()(MyStruct const &s) const { size_t ret = s.x; ret *= 2654435761U; return ret ^ s.y; } }; struct MyStructEqual { inline bool operator()(MyStruct const &s1, MyStruct const &s2) const { return s1.x == s2.x && s1.y == s2.y; } }; int main() { std::unordered_set<MyStruct,

问题 I am trying to unmarshall XML String payload using JAXB in jdk1.8.0_162, while trying to get JAXBContext.newInstance, I am getting javax.xml.bind.JAXBException - with linked exception:[java.lang.ClassNotFoundException: oracle.xml.jaxb.JaxbContextImpl], any input would be great! I have tried adding following dependencies in my pom.xml based on different suggestions from various stackoverflow forums, nothing seems to work : <groupId>javax.xml.bind</groupId> <artifactId>jaxb-api</artifactId>

问题 I am working on a project that has rows in the database that contains a date. I want to echo the data for the fields that have a date that is equal or greater to today. I have looked at other post and tried a lot of different methods and have yet to succedd. Currently what I have returns an error when I do >= but when I just do = with the statement below, I get all rows from the database. $sql = "SELECT * FROM drives WHERE ddest = '{$trimmed}' AND 'leave_date' => DATE_FORMAT(CURDATE(), '%m/%d

问题 I am working on a project that has rows in the database that contains a date. I want to echo the data for the fields that have a date that is equal or greater to today. I have looked at other post and tried a lot of different methods and have yet to succedd. Currently what I have returns an error when I do >= but when I just do = with the statement below, I get all rows from the database. $sql = "SELECT * FROM drives WHERE ddest = '{$trimmed}' AND 'leave_date' => DATE_FORMAT(CURDATE(), '%m/%d

问题 I am trying to add a function that will log any email that is sent through order status changes. Is there a hook I can use that is triggered right before an order notification email is sent? 回答1: Updated All the available hooks responsible for triggering email notifications are located in WC_Emails init_transactional_emails() method and are action hooks: woocommerce_low_stock , woocommerce_no_stock , woocommerce_product_on_backorder , woocommerce_order_status_pending_to_processing ,

问题 I am trying to add a function that will log any email that is sent through order status changes. Is there a hook I can use that is triggered right before an order notification email is sent? 回答1: Updated All the available hooks responsible for triggering email notifications are located in WC_Emails init_transactional_emails() method and are action hooks: woocommerce_low_stock , woocommerce_no_stock , woocommerce_product_on_backorder , woocommerce_order_status_pending_to_processing ,

问题 As the title, I would like to get a specific column in excel worksheet using OpenXML in C# for setting hidden property. Like that: var columns = worksheet.GetFirstChild<Columns>(); var column = columns.FirstOrDefault(c=>c.ColumnIndex == 4); column.Hidden = true; The code above is just a sample for my idea. Is there any way for solving my problem? 回答1: per： https://docs.microsoft.com/en-us/office/open-xml/how-to-get-a-column-heading-in-a-spreadsheet , workSheetPart.Worksheet.Descendants() in

问题 This is a continuation from my previous post Error with svydesign using imputed data sets I would like to run a rake() function in my imputed dataset. However, it seems it is not finding the input variable. Below is a sample code: library(mitools) library(survey) library(mice) data(nhanes) nhanes2$hyp <- as.factor(nhanes2$hyp) imp <- mice(nhanes2,method=c("polyreg","pmm","logreg","pmm"), seed = 23109) imp_list <- lapply( 1:5 , function( n ) complete( imp , action = n ) ) des<-svydesign(id=~1,

问题 I am trying to assign a click event handler to dynamically created buttons that once clicked, will return the ID of the clicked button in vanilla Javascript without any frameworks. Yet I can't seem to get the events to handle properly, here's the code let h = document.getElementsByClassName("buttons"); h.forEach(function() { addEventListener("click", function() { alert(this.id); }); }; 回答1: Try let h = document.getElementsByClassName("buttons"); [...h].forEach(b => { b.addEventListener("click