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php - Upload doesn't work right when the file is too big

I have a PHP app where I can upload files. When I upload most files and do a print_r($_FILES), I get ... to 100MB. Why is this happening? 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 - How to restrict the JTextField to a x number of characters

I have to restrict the number of characters in the JTextField. I used the following code to do that but the problem is i ... , str, attr); } } } See Question&Answers more detail:os...

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

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Doing UI task in doinbackground() in Android

Is there a way to do UI task in the doinbackground() of the AsyncTask. I am well aware it is better to ... in just one place. 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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sorting - Sort string items in a datatable as int using c#

I have some numeric codes stored in a DataTable. When I try to sort it using DataView it sorts the column by string. ... 12, 112, 123, 126, 128 See Question&Answers more detail:os...

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

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bash - Run shell script (with parameters) on Windows command line via Plink

I need to execute a shell script remotely inside the Linux box from Windows #!/bin/bash if [ "$#" -ne ... which will execute on remote server? 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++ - variable nested for loops

I'm trying to figure out how I can use recursion to do n-level nested for loops. For example, if n=3, there would be 3 ... 1 3 2 4 3 . . . 12 1 See Question&Answers more detail:os...

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

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shell - Is there an elegant way to store and evaluate return values in bash scripts?

I have a rather complex series of commands in bash that ends up returning a meaningful exit code. Various places ... then branch on it later? See Question&Answers more detail:os...

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

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vb.net - Automatically adjusting winform and controls to screen size

I created a winform application. The size of each screen is 1361, 768 in pixels. This worked great for larger screens ... ? I am using VS 2012. 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 - get all combinations for a string

I'm trying to create a function in JavaScript that given a string will return an array of all possible combinations ... 'lights-out' type game. 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 does do{} while(0) work in macro?

Though this topic has been discussed many times in this forum and all other forums, still I have doubts. Please ... How does this lock then? See Question&Answers more detail:os...

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

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.net - Why, In Java arithmetic, overflow or underflow will never throw an Exception?

During Java Arithmetic operation , JVM do not throw Underflow or Overflow Exception. So many time we ... exception during arithmetic operation 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 - Return value from a Promise constructor

Consider two examples below... TEST 1 function test1() { return new Promise(function () { return 123; }); } ... object as per the promise spec. 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 - Meaning of "Cannot reduce the visibility of the inherited method" with an interface

I have two files: public interface PrintService { void print(PrintDetails details); class PrintDetails { private String ... this means for me? See Question&Answers more detail:os...

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

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openmpi - assign two MPI processes per core

How do I assign 2 MPI processes per core? For example, if I do mpirun -np 4 ./application then it should ... it could not find an executable: 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 - Does any floating point-intensive code produce bit-exact results in any x86-based architecture?

I would like to know if any code in C or C++ using floating point arithmetic would produce bit exact ... by just configuring the compiler? 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++ placement new

Sorry if this question will sound stupid, but I'm just starting to learn C++ and there is something confusing me ... I've made it quite clear. See Question&Answers more detail:os...

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

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machine learning - How to reduce a fully-connected (`"InnerProduct"`) layer using truncated SVD

In the paper Girshick, R Fast-RCNN (ICCV 2015), section "3.1 Truncated SVD for faster detection", the ... connected layer with a truncated one? See Question&Answers more detail:os...

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

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python - "EOL while scanning single-quoted string"? (backslash in string)

import os xp1 = "Documents and Settings" xp2 = os.getenv("USERNAME") print xp1+xp2 Gives me error File "1.py ... please, do you see the problem? 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++ - Initializing a ublas vector from a C array

I am writing a Matlab extension using the C++ ublas library, and I would like to be able to initialize my ublas vectors ... v[0]=0 pv[0]=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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nfc - Why doesn't Android HCE support Mifare Classic type?

Mifare Classic is the most used cards and I can't understand why HCE (Host-based Card Emulation) only ... comments will be very 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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sql - scope_identity vs ident_current

After much research I am a little confused by which identity tracker I should use in sql. From what I understand ... there a flaw in my logic? 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 - Redirect POST htaccess

This question is very similar to: Is it possible to redirect post data? (asked eariler) but that answer does not ... to work. 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++ - How is its lifetime of a return value extended to the scope of the calling function when it is bound to a const reference in the calling function?

"If you return a value (not a reference) from the function, then bind it to a const reference in the ... Am I missing something trivial here? See Question&Answers more detail:os...

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

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python - calculate the difference between two datetime.date() dates in years and months

I want to calculate the difference between two datetime.date() dates in years and months. For example; d1 = date( ... years & 4 months. 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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php - PCRE regular expression overlapping matches

i have the following string 001110000100001100001 and this expression /[1]....[1]/g this makes two matches but i ... 0 it can be any characters See Question&Answers more detail:os...

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

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stream - Effective use of C++ iomanip library

I created a Vector class in C++ and it works great for my problems. I am now cleaning it up, and I ran ... output.precision(p); return 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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Two phase processing: Do not output empty tags from phase-1 XSLT 2.0 processing

I have some complex XSLT 2.0 transformations. I'm trying to find out if there is general purpose way to ... packaged together in a single one. 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 check Ethernet in Linux?

I need the test case for Ethernet in Linux using C code to check eth0. If eth0 is down, we enable the net then ... if up and the test is passed. See Question&Answers more detail:os...

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

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