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macos - CSS - Overflow: Scroll; - Always show vertical scroll bar?

So currently I have: #div { position: relative; height: 510px; overflow-y: scroll; } However I don't believe ... Is there a way to always have it displaying? Question&Answers:os...

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

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244 views

1 answer

Sqlite primary key on multiple columns

What is the syntax for specifying a primary key on more than 1 column in SQLITE ? Question&Answers:os...

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

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windows - Get current batchfile directory

Firstly, I saw this topic but I couldn't understand that. Question : There is a batch file in D:pathofile.bat with ... It must be D:patho What am I doing wrong? Question&Answers:os...

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

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c# - What really happens in a try { return x; } finally { x = null; } statement?

I saw this tip in another question and was wondering if someone could explain to me how on earth this works? try { ... be done w.r.t. this try-finally hack? Question&Answers:os...

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

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92 views

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How to install node.js as windows service?

I have downloaded node.js executable. How can I run that executable as windows service? I cannot use standard ... run multiple version of node.js concurrently. Question&Answers:os...

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

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c# - Very slow compile times on Visual Studio 2005

We are getting very slow compile times, which can take upwards of 20+ minutes on dual core 2GHz ... like experiences with rapid recompiling during development. Question&Answers:os...

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

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c# - Define: What is a HashSet?

HashSet The C# HashSet data structure was introduced in the .NET Framework 3.5. A full list of the implemented members ... used? Why would you want to use it? Question&Answers:os...

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

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290 views

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python - Set markers for individual points on a line in Matplotlib

I have used Matplotlib to plot lines on a figure. Now I would now like to set the style, specifically the marker, ... on a line, not every marker on said line. Question&Answers:os...

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

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python - Can I force pip to reinstall the current version?

I've come across situations where a current version of a package seems not to be working and requires ... nominally current version in a single step? Question&Answers:os...

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

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javascript - How do I configure different environments in Angular.js?

How do you manage configuration variables/constants for different environments? This could be an example: My rest ... manage this kind of thing in JavaScript? Question&Answers:os...

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

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Algorithm to generate a crossword

Closed. This question needs to be more focused. It is not currently accepting answers. Question&Answers:os...

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

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212 views

1 answer

python - What is the purpose of Flask's context stacks?

I've been using the request/application context for some time without fully understanding how it works or ... for Request Context and Application Context. Question&Answers:os...

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

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1.1k views

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exception - How do I log a Python error with debug information?

I am printing Python exception messages to a log file with logging.error: import logging try: 1/0 except ... line numbers or stack traces would be great. Question&Answers:os...

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

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305 views

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mysql - Setting up foreign keys in phpMyAdmin?

I'm setting up a database using phpMyAdmin. I have two tables (foo and bar), indexed on their primary keys ... have the FKs explicitly defined in the database. Question&Answers:os...

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

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167 views

1 answer

html - Space between two rows in a table?

Is this possible via CSS? I'm trying tr.classname { border-spacing: 5em; } to no avail. Maybe I'm doing something wrong? Question&Answers:os...

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

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348 views

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debugging - How can I write to the console in PHP?

Is it possible write a string or log into the console? What I mean Just like in JSP, if we print something like ... be there at the console, not at a page. Question&Answers:os...

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

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237 views

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java - run main class of Maven project

This question already has answers here: Question&Answers:os...

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

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220 views

1 answer

linux - When should we use mutex and when should we use semaphore

When should we use mutex and when should we use semaphore ? Question&Answers:os...

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

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102 views

1 answer

How do I use pagination with Django class based generic ListViews?

How do I use pagination with Django 1.3? The documentation is not very clear on this. What goes to my views.py ... to my template? What goes to my URLconf file? Question&Answers:os...

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

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149 views

1 answer

SQL Server - inner join when updating

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

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232 views

1 answer

iphone - Apple PNS (push notification services) sample code

Is there a sample project showing how to use APNS on the IPhone and how to set up things? I'm currently ... anything using google or in the iphone dev center. Question&Answers:os...

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

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287 views

1 answer

shell - Using find to locate files that match one of multiple patterns

I was trying to get a list of all python and html files in a directory with the command find Documents -name ... to hack that up if you have better solutions. Question&Answers:os...

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

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354 views

1 answer

python - Compute a confidence interval from sample data

I have sample data which I would like to compute a confidence interval for, assuming a normal ... sample confidence interval would be much appreciated. Question&Answers:os...

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

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154 views

1 answer

Accessing Google Spreadsheets with C# using Google Data API

I'm having some information in Google Spreadsheets as a single sheet. Is there any way by which I can ... anyone has attempted it, pls share some information. Question&Answers:os...

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

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259 views

1 answer

How can I use grep to show just filenames on Linux?

How can I use grep to show just file-names (no in-line matches) on Linux? I am usually using something like: find . ... a way to do this on my grep man page. Question&Answers:os...

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

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353 views

1 answer

How to update Ruby Version 2.0.0 to the latest version in Mac OSX Yosemite?

I need to update my ruby version from 2.0.0 to the latest version, I can not use some gems because my version ... time ago, How can i update my Ruby version? Question&Answers:os...

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

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168 views

1 answer

bash - What's a concise way to check that environment variables are set in a Unix shell script?

I've got a few Unix shell scripts where I need to check that certain environment variables are set before I start ... script should error out if any are unset. Question&Answers:os...

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

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217 views

1 answer

linux - performing HTTP requests with cURL (using PROXY)

I have this proxy address: 125.119.175.48:8909 How can I perform a HTTP request using cURL like curl http: ... , but specifying the proxy address of my network? Question&Answers:os...

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

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