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javascript - Refresh Page and Keep Scroll Position

Can someone show me what i'm doing wrong? I need my page to refresh after a certain period of time, but it ... Family: Arial; font-size: 12px; } </style> Question&Answers:os...

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

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221 views

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node.js - NPM: npm-cli.js not found when running npm

Usually I can install a library using npm but today when installing yeoman I encountered this errors. Please ... in C:Program Files odejs ode_modules pmin Question&Answers:os...

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

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c# - No generic implementation of OrderedDictionary?

There doesn't appear to be a generic implementation of OrderedDictionary (which is in the System.Collections.Specialized ... it's something in .NET 4.0? Question&Answers:os...

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

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How to avoid explicit 'self' in Python?

I have been learning Python by following some pygame tutorials. Therein I found extensive use of the keyword self, ... the self argument into a Python method? Question&Answers:os...

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

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392 views

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python - tkinter: binding mousewheel to scrollbar

I have this scroll-able frame (frame inside canvas actually). import Tkinter as tk class Scrollbarframe(): ... canvas should automatically scroll up or down. Question&Answers:os...

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

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python - Converting a list to a string

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

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linux - Growing resident memory usage (RSS) of Java Process

Our recent observation on our production system, tells us the resident memory usage of our Java container grows up. ... JIT and/or JNI native code invocations. Question&Answers:os...

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

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sql - What are valid table names in SQLite?

What are the combination of characters for a table name in SQLite to be valid? Are all combinations of alphanumerics (A ... 123abc-ABC.txt(...); Thank you. Question&Answers:os...

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

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lambda - Precise definition of "functional interface" in Java 8

Recently I started exploring Java 8 and I can't quite understand the concept of "functional interface" that is ... abstract method? What am I missing here? Question&Answers:os...

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

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.net - C# Sort and OrderBy comparison

I can sort a list using Sort or OrderBy. Which one is faster? Are both working on same algorithm? List<Person> ... return string.Compare(x, y, true); } } Question&Answers:os...

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

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python - Saving a figure after invoking pyplot.show() results in an empty file

The following example code generates a simple plot, then saves it to 'fig1.pdf', then displays it, then saves it again ... ') plt.show() plt.savefig('fig2.pdf') Question&Answers:os...

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

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python - Expire a view-cache in Django?

The @cache_page decorator is awesome. But for my blog I would like to keep a page in cache until someone comments ... someone knows a better way of doing this? Question&Answers:os...

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

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How do git grafts and replace differ? (Are grafts now deprecated?)

There are very few Q&A's on git grafts versus replace. The search [git] +grafts +replace only found two ... but I'd welcome any confirmation or clarification. Question&Answers:os...

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

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301 views

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android - How to update UI in a BroadcastReceiver

I created an application in which I registered a broadcast receiver within my main class(Main Activity) and whenever ... } } Any help will be appreciable Thanks Question&Answers:os...

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

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javascript - ES6 Object Destructuring Default Parameters

I'm trying to figure out if there's a way to use object destructuring of default parameters without worrying about the object being ... (a + " " + b); })(); Question&Answers:os...

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

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423 views

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css - Possible to use border-radius together with a border-image which has a gradient?

I'm styling an input field which has a rounded border (border-radius), and attempting to add a gradient ... properties work together, or is this not possible? Question&Answers:os...

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

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Java 7 underscore in numeric literals

When we must use a _ to separate digits in a number I don't understand the following case in which I can ... documented in the JDK7 guide here) Some examples? Question&Answers:os...

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

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422 views

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c++ - Why can't simple initialize (with braces) 2D std::array?

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

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javascript - How do I remove all null and empty string values from an object?

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

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caching - How to cache Google map tiles for offline usage?

Like Nokia's OVI maps can be used offline, there must be some way of caching Google map tiles too. Any hints? Question&Answers:os...

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

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linux - Python spawn off a child subprocess, detach, and exit

I'm wondering if this is the correct way to execute a system process and detach from parent, though allowing ... is to change the process group? Thanks. Ilya Question&Answers:os...

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

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356 views

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c++ - Why does int pointer '++' increment by 4 rather than 1?

Value of a pointer is address of a variable. Why value of an int pointer increased by 4-bytes after the int pointer ... the 4 bytes an int occupies one by one? Question&Answers:os...

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

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386 views

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r - dplyr: nonstandard column names (white space, punctuation, starts with numbers)

df <- structure(list(`a a` = 1:3, `a b` = 2:4), .Names = c("a a", "a b" ), row. ... get an exact match without knowing the index numer or similar column names? Question&Answers:os...

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

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239 views

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python - How to sort a list of tuples according to another list

There is a list: a = [("ax", 1), ("ec", 3), ("bk", 5)] another list: b = ["ec", "ax", "bk"] I want to sort a ... ec", 3), ("ax", 1), ("bk", 5)] How to do this? Question&Answers:os...

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

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77 views

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c# - How can I get all constants of a type by reflection?

How can I get all constants of any type using reflection? Question&Answers:os...

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

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243 views

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arrays - Can I create a "view" on a Python list?

I have a large list l. I want to create a view from element 4 to 6. I can do it with sequence slice. >>> l = ... like pointer arithmetic in C: int lv[] = l + 3; Question&Answers:os...

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

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87 views

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java - Time comparison

I have a time in hh:mm and it has to be entered by the user in that format. However, I want to compare the ... between 10am to 6pm? But how do I compare it? Question&Answers:os...

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

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414 views

1 answer

python - Iterate over Worksheets, Rows, Columns

I want to print all data (all rows) of a specific column in python using openpyxl I am working in this way; from ... None): return else: print(d.value) c=c+1 Question&Answers:os...

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

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