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python - MaxRetryError: HTTPConnectionPool: Max retries exceeded (Caused by ProtocolError('Connection aborted.', error(111, 'Connection refused')))

I have one question:I want to test "select" and "input".can I write it like the code below: original code: 12 ... 1 test in 72.106s who can tell me why?thanks Question&Answers:os...

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

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Upload and download a file to/from FTP server in C#/.NET

I am using .NET 4 C#. I am trying to upload and then download a ZIP file to (my) server. For uploading I ... the downloaded ZIP file I get an invalid ZIP file. Question&Answers:os...

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

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html - Determine a user's timezone

Is there a standard way for a web server to be able to determine a user's timezone within a web page? Perhaps ... HTTP header or part of the user-agent string? Question&Answers:os...

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

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Callback functions in C++

In C++, when and how do you use a callback function? EDIT: I would like to see a simple example to write a callback function. Question&Answers:os...

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

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git - Find out which remote branch a local branch is tracking

See also: How can I see which Git branches are tracking which remote / upstream branch? How can I find out which ... there a command that would do this for me? Question&Answers:os...

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

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AngularJS app.run() documentation?

How and where is app.run() used? After module definition, after app.config() or after app.controller()? I am ... code can be run in the app.run() function. Question&Answers:os...

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

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java - Difference between paint, paintComponent and paintComponents in Swing

What is the actual difference between paint(), paintComponent() and paintComponents() in Java Swing? I tried to ... in Oracle docs but I am not clear. Question&Answers:os...

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

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php - HTML Element Array, name="something[]" or name="something"?

I saw something on this site: Handling array of HTML Form Elements in JavaScript and PHP http://www.ajaxprojects. ... is the different with or without the []? Question&Answers:os...

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

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

I have set up PHP, MySQL, and Apache. localhost() for PHP and it is working well. But after I ... undefined function mysql_connect() How can I fix this? Question&Answers:os...

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

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How to transpose a javascript object into a key/value array

Given a JavaScript object, how can I convert it into an array of objects (each with key, value)? Example: var data ... 'email', value: '[email protected]' } ] Question&Answers:os...

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

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python - Converting string with UTC offset to a datetime object

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

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parsing - Cannot parse String in ISO 8601 format, lacking colon in offset, to Java 8 Date

I'm a little bit frustrated of java 8 date format/parse functionality. I was trying to find Jackson ... gives more format flexibility and easier to use. Question&Answers:os...

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

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apache kafka - Integrating Spark Structured Streaming with the Confluent Schema Registry

I'm using a Kafka Source in Spark Structured Streaming to receive Confluent encoded Avro records. I intend to use ... with Spark 2.0.2 (structured streaming) Question&Answers:os...

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

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c++ - Will std::string always be null-terminated in C++11?

In a 2008 post on his site, Herb Sutter states the following: There is an active proposal to tighten this up further ... be safe to use something like &str[0]? Question&Answers:os...

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

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Python MySQLdb TypeError: not all arguments converted during string formatting

Upon running this script: #! /usr/bin/env python import MySQLdb as mdb import sys class Test: def check(self, ... Python, so it's probably an obvious problem. Question&Answers:os...

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

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python - How to avoid floating point errors?

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

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How to communicate between component in Angular?

I'm working on a web app project and I'm trying to use Angular, I get some problem with ... child component, how to communicate between siblings components. Question&Answers:os...

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

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vb.net - Why is it bad to use an iteration variable in a lambda expression

I was just writing some quick code and noticed this complier error Using the iteration variable in a lambda expression ... ? What problems can I cause later on? Question&Answers:os...

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

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Making python/tkinter label widget update?

I'm working on getting a python/tkinter label widget to update its contents. Per an earlier thread today, I ... lambda : root.destroy()) root.mainloop() Question&Answers:os...

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

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http get - Is there a limit to the length of a GET request?

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

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java - Does the JVM prevent tail call optimizations?

I saw this quote on the question: What is a good functional language on which to build a web service ... about the JVM that creates this fundamental limitation? Question&Answers:os...

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

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python - raw_input and timeout

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

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How to retrieve element value of XML using Java?

I am new to XML. I want to read the following XML on the basis of request name. Please help ... responsequeue>Cleanresponse</responsequeue> </Request> </config> Question&Answers:os...

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

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deployment - Running .net based application without .NET Framework

Is there a way to run .net based applications without .net framework installed. Is there a way to do ... Has anyone any experience with VMWare thin client? Question&Answers:os...

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

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c# - Up, Down, Left and Right arrow keys do not trigger KeyDown event

I am building an application where all the key input must be handled by the windows itself. I set tabstop to ... why my arrow key suddenly stop firing event? Question&Answers:os...

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

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linux - How to declare 2D array in bash

I'm wondering how to declare a 2D array in bash and then initialize to 0. In C it looks like this: int a[4][5] = {0}; ... to an element? As in C: a[2][3] = 3; Question&Answers:os...

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

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subquery - JPA 2.0, Criteria API, Subqueries, In Expressions

I have tried to write a query statement with a subquery and an IN expression for many times. But I have ... you ever written such a query? Any suggestion? Question&Answers:os...

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

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java - How to use JarOutputStream to create a JAR file?

How does one create a JAR file programmatically using java.util.jar.JarOutputStream? The JAR file produced ... programmatically, complete with a manifest file. Question&Answers:os...

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

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