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What is the best way to do a substring in a batch file?
...hanced.
You can now use the following optional
syntax:
%~I - expands %I removing any surrounding quotes (")
%~fI - expands %I to a fully qualified path name
%~dI - expands %I to a drive letter only
%~pI - expands %I to a path only
%~nI - expands %I to a file ...
Why is creating a new process more expensive on Windows than Linux?
I've heard that creating a new process on a Windows box is more expensive than on Linux. Is this true? Can somebody explain the technical reasons for why it's more expensive and provide any historical reasons for the design decisions behind those reasons?
...
Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...xe" --user-data-dir="..\User Data\18" --chrome-version=18.0.1025.45
Explanation of this shortcut:
"C:\Chrome\18.0.1024.45\chrome.exe" • This is the
launcher
--user-data-dir="..\User Data\18" • User profile, relative to the location of chrome.exe. You could also have
used --u...
What is the difference between String and string in C#?
...o.)
There is one circumstance in which you have to use the aliases: when explicitly specifying an enum's underlying type. For instance:
public enum Foo : UInt32 {} // Invalid
public enum Bar : uint {} // Valid
That's just a matter of the way the spec defines enum declarations - the part after ...
Why do Java webapps use .do extension? Where did it come from?
...o to make yourself less of a target is a positive.
– XP84
Mar 3 '17 at 19:52
By default, the response headers would be...
Using tags in the with other HTML
...) and Firefox in version 62 (2018). In both cases, the feature had to be explicitly enabled by the user in the browsers' settings. No other major browser ever supported it.
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Header files for x86 SIMD intrinsics
... |
| xmmintrin.h | SSE + MMX (Pentium 3, Athlon XP) |
| emmintrin.h | SSE2 + SSE + MMX (Pentium 4, Athlon 64) |
| pmmintrin.h | SSE3 + SSE2 + SSE + MMX (Pentium 4...
When to use dynamic vs. static libraries
...l), which has all but been eliminated by more recent Windows OSes (Windows XP in particular).
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...P开发的童鞋，应该关注到当今PHP7已经发布，而且到了RC5 版，PHP7 的性能对比PHP 5.x的提升，无论是在响应速度还是在内存的优化方面，都是百分之百以上的提升。其次，除了关注语言的发展，还应该关注在PHP的相关技术方面，数...
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