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python - Error handling using integers as input

Ive set up this program that checks the mark out of 100 for a test. If the user inputs less than 60 it ... that 14 year olds would understand? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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windows - How to troubleshoot python import error - DLL access denied

I have installed a certain python package (netCDF4), which contains compiled code (extension module). I am running ... out what is going on? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JTree add nodes on startup of application

I want to make text editor with file browser so when I start my application I want to my program add ... specific folder. Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Register AspNetCore 2.1 Identity system with DbContext interface

I am working on an AspNetCore 2.1 WebApi. I am using Microsoft.Extensions.DependencyInjection, AspNetCore.Identity, ... ? Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Getting rotation from ExifInterface always returns 0

I'm passing a bitmap via bundle on onActivityResult from a camera. Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE ... S3 and LG G2. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - False boolean = True?

I found this code in a book and I executed it in Netbeans: boolean b = false; if(b = true) { System ... Can anyone enlighten me please, Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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io - How can one flush input stream in C?

I am not able to flush stdin here, is there a way to flush it? If not then how to make getchar() to take ... salary : Add another record (Y/N) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Segmentation fault when allocating large arrays on the stack

When I compiled this simple C code it's fine but after uncommenting the line it shows segmentation fault. I don't ... %d",&neigh); return 0; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - store_result() and get_result() in mysql returns false

I made a code a few days ago including get_result() to receave the results from my database. Today I wantet to add ... } else { return false; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How programmatically restart an iPhone app in iOS

How programmatically restart an iPhone app in iOS? I find this way http://writeitstudios.com/david/?p=54 But may be something simple. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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excel - Import semicolon separated CSV file using VBA

I have a problem with opening .csv files with Excel by VBA code. I have data organised like: Number;Name; ... from this thread. Any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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assembly - What is the point of SSE2 instructions such as orpd?

The orpd instruction is a "bitwise logical OR of packed double precision floating point values". Doesn't this do ... the point of having it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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using division operator (/) on strings in javascript

I realized that in javascript all 101/100, "101"/100, 101/"100" and "101"/"100" result in 1.01 (checked ... if the variable can be a string)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - I'm getting "The report definition for report 'xxxx.rdlc' has not been specified" in my RDLC report

I've created an rdlc report. I have a reportViewer on my form. When I try to load the report I get : ... . Any help will be highly appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - find multiple strings using str_extract_all

I have a list of strings as follows: tofind<-c("aaa","bbb","ccc","ddd") I also have a vector as follows: ... ) How do I get the expected output? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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C array size given by variable

I found some code today that confused me. It did something like this: #include <stdio.h> int main(int argc, ... something but, I just wonder. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Highcharts returning error 14

Am trying to draw a pie chart with highcharts, after spending hours trying to figure out how process a JSON ... wrong, please help me out See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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syntax - In Perl, what is the difference between accessing an array element using @a[$i] as opposed to using $a[$i]?

Basic syntax tutorials I followed do not make this clear: Is there any practical/philosophical/context-dependent/tricky ... same in both cases. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Appcompat does not work

I am trying to use appcompat in my application. I have done everything according to the instructions. But when I add ... am I not doing right? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Multiprocessing AsyncResult.get() hangs in Python 3.7.2 but not in 3.6

I'm trying to port some code from Python 3.6 to Python 3.7 on Windows 10. I see the multiprocessing ... works as expected on other versions. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Difference Between Timestamps in Milliseconds in Oracle

I have table test1 and have one column DOJ with timestamp datatype having few records as shown below. Here i need ... please help me with this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Why both clang and gcc only give a warning when there is a space after backslash if C standard says that whitespace is forbidden?

When compiling the following snippet, both gcc and clang only issue a warning. Notice space after next to int: ... error. How common is that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to initialize `std::function` with a member-function?

I am trying to learn std::function and here's my code: #include <iostream> #include <functional> struct Foo ... member function as a parameter? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Intent.putExtras size limit?

I'm trying to pass data from one activity to another via Intent.putExtras like this: private ArrayList<HashMap< ... just fine. Please help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why is it allowed to access a private field of another object?

Recently, I observed an unexpected behavior of accessing priavte fields in Java. Consider the following example, which ... method (2nd case)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to avoid an out of memory error while using bitmaps in Android

I am using bitmaps. When the code runs it shows an out of memory error. How can the error be avoided. My code ... width / (float)reqWidth); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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783 views

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php - Fatal error: Call to undefined function oci_connect()

I have the next lines uncommented (in my php.ini): extension=php_oracle.dll extension=php_oci8.dll And I ... module could not be found. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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piping in shell via Python subprocess module

So I'm trying to query for the top 3 CPU "intensive" processes on a given machine, and I found this shell ... '])? Thanks! Regards, -kstruct See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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