外文分享

问题 int x = Character.getNumericValue('A'); System.out.println(" the value of x is: " + x); // prints 10 I am looking for a method that takes in somemethod(10) and returns 'A'. Does such a method exist in java ? 回答1: As stated by Anubian Noob and Jeroen Vannevel, Character.GetNumericValue('A') = 10 , Character.GetNumericValue('a') = 10 and `Character.forDigit(10, 36) ='a'. So IMHO, what is closest of what you ask would be Character fromNumericValue(int x) { if ((x < 0) || (x > 35)) { throw new

问题 I'm trying to use the SqlBulkCopy class from the System.Data assembly (4.6.1) to bulk insert a table with a geospatial data type, using code that looks roughly like this (adapted from https://github.com/MikaelEliasson/EntityFramework.Utilities): public void InsertItems<T>(IEnumerable<T> items, string schema, string tableName, IList<ColumnMapping> properties, DbConnection storeConnection, int? batchSize) { using (var reader = new EFDataReader<T>(items, properties)) { var con = (SqlConnection

问题 I have data that looks like the following: Region X2012 X2013 X2014 X2015 X2016 X2017 1 1 10 11 12 13 14 15 2 2 NA 17 14 NA 23 NA 3 3 12 18 18 NA 23 NA 4 4 NA NA 15 28 NA 38 5 5 14 18.5 16 27 25 39 6 6 15 NA 17 27.5 NA 39 The numbers are irrelevant here but what I am trying to do is take the difference between the earliest and latest observed points in each row to make a new column for the difference where: Region Diff 1 (15 - 10) = 5 2 (23 - 17) = 6 and so on, not actually showing the

问题 Hello I am currently working on a program where I need to process a data blob that contains a series of floats which could be unaligned (and also are sometimes). I am compiling with gcc 4.6.2 for an ARM cortex-a8. I have a question to the generated assembly code: As example I wrote a minimal example: For the following test code float aligned[2]; float *unaligned = (float*)(((char*)aligned)+2); int main(int argc, char **argv) { float f = unaligned[0]; return (int)f; } the compiler (gcc 4.6.2 -

问题 int x = Character.getNumericValue('A'); System.out.println(" the value of x is: " + x); // prints 10 I am looking for a method that takes in somemethod(10) and returns 'A'. Does such a method exist in java ? 回答1: As stated by Anubian Noob and Jeroen Vannevel, Character.GetNumericValue('A') = 10 , Character.GetNumericValue('a') = 10 and `Character.forDigit(10, 36) ='a'. So IMHO, what is closest of what you ask would be Character fromNumericValue(int x) { if ((x < 0) || (x > 35)) { throw new

问题 I have a data frame called df1 with a 2-level MultiIndex (levels: '_Date' and _'ItemId'). There are multiple instances of each value of '_ItemId', like this: _SomeOtherLabel _Date _ItemId 2014-10-05 6588921 AA 6592520 AB 6836143 BA 2014-10-11 6588921 CA 6592520 CB 6836143 DA I have a second data frame called df2 with '_ItemId' used as a key (not the index). In this df, there is only one occurrence of each value of _ItemId: _ItemId _Cat 0 6588921 6_1 1 6592520 6_1 2 6836143 7_1 I want to

问题 Hello I am currently working on a program where I need to process a data blob that contains a series of floats which could be unaligned (and also are sometimes). I am compiling with gcc 4.6.2 for an ARM cortex-a8. I have a question to the generated assembly code: As example I wrote a minimal example: For the following test code float aligned[2]; float *unaligned = (float*)(((char*)aligned)+2); int main(int argc, char **argv) { float f = unaligned[0]; return (int)f; } the compiler (gcc 4.6.2 -

问题 I'm trying to use the SqlBulkCopy class from the System.Data assembly (4.6.1) to bulk insert a table with a geospatial data type, using code that looks roughly like this (adapted from https://github.com/MikaelEliasson/EntityFramework.Utilities): public void InsertItems<T>(IEnumerable<T> items, string schema, string tableName, IList<ColumnMapping> properties, DbConnection storeConnection, int? batchSize) { using (var reader = new EFDataReader<T>(items, properties)) { var con = (SqlConnection

问题 i'm new to MOXy and JaxB in general and I'm facing a problem with java.util.Date conversion. I'm unmarshaling an XML file (which I have no control of) to objects using a mapping file (I can neither manually annotate existing classes nor change them). My XML mapping file looks like this : <?xml version="1.0"?> <xml-bindings xmlns="http://www.eclipse.org/eclipselink/xsds/persistence/oxm" version="2.1"> <java-types> <java-type name="Observation"> <xml-type prop-order="date theoricalTime ci ch cr

问题 I'd like to print every line of python script as it's being executed, as well as the log from the console as every line is being executed. For example, for this script: import time print 'hello' time.sleep(3) print 'goodbye' I'd like it to generate the following in the console: line 1: import time line 2: print 'hello' hello line 3: time.sleep(3) line 4: print 'goodbye' goodbye See below for my attempt import subprocess as subp python_string = """ import sys import inspect class SetTrace