大约有 43,000 项符合查询结果（耗时：0.0401秒） [XML]
2026年6月3日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
本贴是论坛每日签到系统在每天的第一位签到者签到时所自动生成的,如果您还未签到,请点此进行签到的操作. 我在 2026-06-03 06:35 完成签到,是今天第一个签到的用户,获得随机奖励 小红花 20,另外我还额外获得了 小红花 10.我今天...
Java: int array initializes with nonzero elements
...havior occurs first in JDK 7u4 and also occurs in all later updates (I use 64-bit implementation). The following code throws exception:
...
OpenJDK availability for Windows OS [closed]
...lds github project.
Update: OpenJDK 8 and 11 LTS binaries for Windows x86_64 can be found in ojdkbuild github project.
Disclaimer: I've built them myself.
Update (2019): OpenJDK Updates Project Builds for 8 and 11 are available now.
...
How do I iterate through each element in an n-dimensional matrix in MATLAB?
...:
B = zeros(size(A));
for i = 1:numel(A)
B(i) = A(i).^2;
end
B
B =
64 1 36
9 25 49
16 81 4
There are many circumstances where the linear index is more useful. Conversion between the linear index and two (or higher) dimensional subscripts is accomplished with th...
What is the exact meaning of Git Bash?
...HOME is defined
See "Fix msysGit Portable $HOME location":
On a Windows 64:
C:\Windows\SysWOW64\cmd.exe /c ""C:\Prog\Git\1.7.1\bin\sh.exe" --login -i"
This differs from git-cmd.bat, which provides git commands in a plain DOS command prompt.
A tool like GitHub for Windows (G4W) provides differ...
近期 Chrome 下 Discuz 兼容问题修复记录：AJAX 提交失效与移动链接误跳转 ...
...没有结果
原因：
Discuz 旧版很多“ajaxpost”实际上是通过隐藏 iframe 提交表单，再从 iframe 返回文档中读取结果。
这套老机制在新版 Chrome 下兼容性较差，主要包括：
1. 旧代码依赖过时的返回读取方式，拿不到正确内容...
How to manually create icns files using iconutil?
...sips -z 32 32 Icon1024.png --out MyIcon.iconset/icon_32x32.png
sips -z 64 64 Icon1024.png --out MyIcon.iconset/icon_32x32@2x.png
sips -z 128 128 Icon1024.png --out MyIcon.iconset/icon_128x128.png
sips -z 256 256 Icon1024.png --out MyIcon.iconset/icon_128x128@2x.png
sips -z 256 256 Icon...
String literals: Where do they go?
...ts of the array, the behavior is undefined.
Where do they go?
GCC 4.8 x86-64 ELF Ubuntu 14.04:
char s[]: stack
char *s:
.rodata section of the object file
the same segment where the .text section of the object file gets dumped, which has Read and Exec permissions, but not Write
Program:
#inclu...
C# vs C - Big performance difference
...h the native operation mode of the FPU and SSE instruction set on x86 and x64 processors. No coincidence there. The JITter compiles Math.Sqrt() to a few inline instructions.
Native C/C++ is saddled with years of backwards compatibility. The /fp:precise, /fp:fast and /fp:strict compile options ar...
Why is division in Ruby returning an integer instead of decimal value?
...o learn what works best. Here's the benchmark I put together: require 'base64';require 'zlib';puts Zlib.inflate(Base64.decode64("eJxlkMEOwiAQRO98hekFuGzxQEwPXvwR01ZqiYHqBk2Tln8XDlWgnDbM25nJonq9NaoD7ZTtR9PigxK09zM7AkgRHieXTYHOsBNf1nklM6B6TuhYpdp+rPgSdiCOi/d/kQ71QBOtAVFLEDly05+UYQ2H+MckL6z0zioDdJG1S9K...