Node.js与PHP、Python的字符处理性能对比_node.js

var fs = require("fs");

var content = fs.readFileSync("page.html", {
 encoding: "utf-8"
});

function chars(content){
 var length = content.length;
 var pos = 0;
 while(pos ++ 

var fs = require("fs");

var content = fs.readFileSync("page.html", {
 encoding: "utf-8"
});

var Chars = function(str){
 this.str = str;
 this.length = str.length
 this.pos = 0;
}
Chars.prototype.run = function(){
 while(this.pos ++ 

str = $str;
  $this->length = strlen($str);
  $this->pos = 0;
 }
 public function run(){
  while($this->pos++ length){
   $char = $this->str{$this->pos - 1};
  }
 }
}
$content = file_get_contents("page.html");
$start = microtime(true);
$instance = new Chars($content);
$instance->run();
$end = microtime(true);
echo ($end - $start) . "\n";
?>

import codecs
import time

def chars(content):
 length = len(content)
 pos = 0
 while(pos 

import codecs
import time

class Chars(): 
 def __init__(self, str): 
  self.str = str
  self.length = len(str)
  self.pos = 0

 def run(self):
  while(self.pos 

语言 函数 类
Node.js 0.022s 0.026s
PHP 0.35s 1.02s
Python 0.58s 1.50s