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We ran into serious performance problems with our Oracle database and we would like to try to migrate it to ... it can be imported into another database system? Question&Answers:os...

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

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loops - How to make a jquery infinite animation?

I'm trying to implement a jQuery function with an infinite loop to animate the body background with 3 colours. I cannot think of ... 500); }); }); }); Any idea? Question&Answers:os...

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

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javascript - Check if file exists but prevent 404 error in console from showing up

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

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typescript - Angular 2: Convert Observable to Promise

Q) How do I convert the following observable to a promise so I can call it with .then(...)? My method I want to ... .... }); return assettypes; }); } Thanks! Question&Answers:os...

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

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function - Round up to nearest multiple of five in PHP

I want a php function which returns 55 when calling it with 52. I've tried the round() function: echo round(94, -1); // 90 It returns 90 but I want 95. Thanks. Question&Answers:os...

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

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c# - Why is Task<T> not co-variant?

class ResultBase {} class Result : ResultBase {} Task<ResultBase> GetResult() { return Task.FromResult(new Result()); ... me to write the code in this way. Question&Answers:os...

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

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callback - Python, how to pass an argument to a function pointer parameter?

I only just started learning Python and found out that I can pass a function as the parameter of another function. ... to pass "test" to repeat instead of foo? Question&Answers:os...

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

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python - How to access a dictionary key value present inside a list?

Suppose I have the following list: list = [{'a': 1, 'b': 2}, {'c': 3, 'd': 4}, {'e': 5, 'f': 6}] How do I access a particular value of key say d? Question&Answers:os...

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

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php - Session data lost in Chrome only

I have a problem similar if not identical to the problem in this thread: Randomly Losing Session Variables Only ... by switching from SESSIONS TO COOKIES... Question&Answers:os...

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

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Is it possible to write vertically in a textview in android?

Let's say you have a normal TextView, with "Stackoverflow" written in it, Is it possible to rotate the TextView ... am interested in the text right now. Thanks. Question&Answers:os...

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

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c# - How to deserialize a JSON property that can be two different data types using Json.NET

I'm using Json.NET for a project I'm working on. From an external API, I am receiving JSON with properties that ... I hope someone knows how to do this. Thanks. Question&Answers:os...

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

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c# - StandardOutput.ReadToEnd() hangs

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

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date - javascript to find leap year

How can I get the code below to work when I have a month of february? Currently it is getting to the day and then ... field.value = month +'/' + ''; } } Question&Answers:os...

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

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Dual SIM card Android

Has anyone had experience with programming the selection of the SIM card, when the phone uses a dual SIM ... , which allows the SIM card switch/selection? Question&Answers:os...

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

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email - Sendmail Wamp Php

I have spent all the morning searching this on internet trying to find a solution about this. I have installed wamp ... <p>Email delivery failed</p>"); ?> Question&Answers:os...

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

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Changing the price in quote while adding product to cart: magento

I want to change the product price while add that product to cart. How its possible let me know... Question&Answers:os...

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

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python - Run Process and Don't Wait

I'd like to run a process and not wait for it to return. I've tried spawn with P_NOWAIT and subprocess like ... the process and not wait for it to complete? Question&Answers:os...

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

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C struct initialization using labels. It works, but how?

I found some struct initialization code yesterday that threw me for a loop. Here's an example: typedef struct { int ... Is anybody aware of how/why this works? Question&Answers:os...

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

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javascript - Differentiating +0 and -0

It turns out +0 === -0 evaluates to true despite +0 and -0 being different entities. So, how do you differentiate +0 ... { // myZero is -0 } Can I do better? Question&Answers:os...

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

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delphi - How can I tell if another instance of my program is already running?

How do i tell if one instance of my program is running? I thought I could do this with a data file but it ... want 1 instance to ever be open at one point. Question&Answers:os...

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

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xaml - How can I apply a custom sort rule to a WPF DataGrid?

When the user does a column sort in my DataGrid, I want all null or empty cells to be sorted to the ... 'm hoping for an MVVM friendly solution if possible. Question&Answers:os...

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

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c# - What is the effect of AsEnumerable() on a LINQ Entity?

Reading the questions here and here has given me some insight into the situation, and it seems like using the ... = p.OCR, ElectorName = p.ElectorName }; Question&Answers:os...

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

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Clarification of the cause of mixing Implicit and Explicit waits in Selenium doc

I was reading the SeleniumHQ documentation and came across the following statements. "WARNING: Do not mix implicit and ... } Time in second: 00:00:20.5771817 Question&Answers:os...

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

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Get Google Document as HTML

I had a wild idea that I could build a website blog for an unsophisticated user friend using Google Drive ... in my content service. Is this possible? Question&Answers:os...

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

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java - How to find the currently running applications programmatically in Android?

I am very new to Android. I am working on application that must get the information about the applications currently ... information on log. How can I do this? Question&Answers:os...

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

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c++ - Checking if this is null

Does it ever make sense to check if this is null? Say I have a class with a method; inside that method ... be deleted while another thread is inside the method. Question&Answers:os...

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

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236 views

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C++ [] array operator with multiple arguments?

Can I define in C++ an array operator that takes multiple arguments? I tried it like this: const T& ... C2804 binary operator '[' has too many parameters Question&Answers:os...

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

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332 views

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C# - Winforms - Global Variables

I want some variables to be global across the project and accessible in every form. How can I do this? Question&Answers:os...

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

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