速度比较Perl Python& C [英] Speed Comparison Perl Python & C
问题描述
这个周末只是鬼混。用C语言编写和定时程序，Perl和
Python。每个程序计数到1,000,000并将每个数字打印到
控制台。我有点惊讶。我不是专家C或Perl
编程练习，我最熟悉Python，但也可以使用其他的
。
以下是我的结果：
C = 23秒
Python = 26.5秒
Perl = 34.5秒
以下是程序：
------------------ -------
＃C版：
---------------------- ---
#include< stdio.h>
int main（无效）
{
int x = 0;
while（x <1000000）{
printf（"％d \ n"，x ++）;
}
}
-------------------- -----
#Python版本：
------------------------ -
＃！/ usr / bin / python
x = 0
而x< 1000000：
x = x + 1
打印x
-------------- -----------
＃Perl版本：
------------------ -------
＃！/ usr / bin / perl -Tw
使用严格;
我的$ x = 0;
而（$ x <1000000）{
print $ x ++，" \\\
" ;;
}
你们怎么看待这个？关于Perl& amp;我不太了解C，和
也许是Python，要知道这确实是一个公平的测试。我认为C会比这更快地做到这一点。有什么想法吗？
Just fooling around this weekend. Wrote and timed programs in C, Perl and
Python. Each Program counts to 1,000,000 and prints each number to the
console as it counts. I was a bit surprised. I''m not an expert C or Perl
programming expery, I''m most familiar with Python, but can use the others
as well.
Here are my results:
C = 23 seconds
Python = 26.5 seconds
Perl = 34.5 seconds
Here are the programs:
-------------------------
#The C version:
-------------------------
#include <stdio.h>
int main(void)
{
int x = 0;
while (x < 1000000) {
printf("%d \n", x++);
}
}
-------------------------
#The Python version:
-------------------------
#!/usr/bin/python
x = 0
while x < 1000000:
x = x + 1
print x
-------------------------
#The Perl version:
-------------------------
#!/usr/bin/perl -Tw
use strict;
my $x = 0;
while($x < 1000000) {
print $x++, "\n";
}
What do you guys think of this? I don''t know enough about Perl & C, and
perhaps Python, to know if this was indeed a fair test. I thought C would
do this much faster than it did. Any ideas?
推荐答案
x = 0;
while（
x = 0;
while(
x <1000000）{
x < 1000000) {
x ++，" \ n";
}
你们怎么看待这个？关于Perl& amp;我不太了解C，和
也许是Python，要知道这确实是一个公平的测试。我认为C会比这更快地做到这一点。有什么想法吗？
x++, "\n";
}
What do you guys think of this? I don''t know enough about Perl & C, and
perhaps Python, to know if this was indeed a fair test. I thought C would
do this much faster than it did. Any ideas?
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