I'm in love with None. Yes, Perl has "undef" but it isn't used much. In Python a variable can be equal to None, which is different than zero or not defined. I can default a parameter to None, and take action "if x is None". (that's valid Python. "is" is like equals, on...
不仅如此,两者的差距还在继续增长,Thompson NFA算法处理长度为100的字符串只需要不到200微秒,而Perl则需要超过10^15年。(Perl语言只是诸多语言的一个典例,其他包括Python、PHP或Ruby等更多语言的表现都是如此) 这可能非常令人难以置信,也许你在使用Perl的时候并没有发现它表现得如此糟糕。实际上,Perl在大多数情况下已...
a Perl program is almost as fast as a fully pre-compiled C language program. A plugin is available for some servers, such asApache, loading Perl permanently in memory. This reduces compile time and results in faster execution time of CGI Perl script. ...
Python is a platform-independent scripted language that comes with features to have complete access to operating system APIs. When compared with other programming languages, Python provides more run-time flexibility. The basic text manipulation facilities of Awk and Perl are also included in Python. ...
(Perl语言只是诸多语言的一个典例,其他包括Python、PHP或Ruby等更多语言的表现都是如此) 这可能非常令人难以置信,也许你在使用Perl的时候并没有发现它表现得如此糟糕。实际上,Perl在大多数情况下已经足够快了,但是当我们拿出丧心病狂的正则表达式来测试Perl的时候,它可以变得异常的慢。相比之下,Thompson NFA算法并...
Due to the qualities noted above, the solution will have fewer bugs and be much faster to develop, and these are therealreasons to opt for Python over C for many tasks. I'm like David (except I sport much better Hawaiian shirts) in that I appreciate the pros associated with both langua...
RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library. - google/re2
@bli It is still about 10% faster if you can work with bytes all the way through and then transfer to a string at the end. If you need to go string->bytes->string then it is about 25-30% slower than staying with strings
Python is also beginner-friendly, allowing more newcomers to start coding faster than they could with C++. C++’s niche uses mean it will forever remain an influential and sought-after language, but its community is smaller. Despite that, community growth for C/C++ developers is stronger than ...
29.5 ms 108 runs Summary scc -c valkey ran 1.06 ± 0.08 times faster than polyglot valkey 1.08 ± 0.09 times faster than scc valkey 2.44 ± 0.22 times faster than tokei valkey CPython https://github.com/python/cpython Benchmark 1: scc cpython Time (mean ±σ): 81.9 ms ± 4.2 ms...