c++、php、java、python、javascript对比，同一功能用5种编程语言写一遍，谁才是最好的编程语言？

感觉编程语言里面，大家使用最多的就是这几种了吧，最火的是javascript，python好像说是无所不能，PHP没悬念还是世界上最好的编程语言，java用的人应该最多吧，c++吗，据说比较难，所以就是逼格最高的语言吧。

其实这几种语言，除了Python，其他几个还都有共通之处，都是带花括号（{}）的C系语法，而python吧，不带花括号，感觉和之前的VBscript有点像，废话不多说，今天就用这5种语言写同一个功能，我一会分别把代码粘出来，大家对语法做一下比较，看看更喜欢那种？

昨天闲聊群里有人发了一串JavaScript代码，功能呢就是在控制台输出用字符拼出的字符画“V ME 50”，v me 50算是最近很火的一个梗了，运行效果如下图

 代码如下：

const arr = [  [1, 9, 12, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44],  [2, 8, 12, 13, 19, 20, 23, 31, 39, 44],  [3, 7, 12, 14, 18, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 44],  [4, 6, 12, 15, 17, 20, 23, 36, 39, 44],  [5, 5, 12, 16, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44],];function demo(arr) {  let str = '';  for (let i = 0; i < arr.length; i++) {    for (j = 0; j < 50; j++) {      if (arr[i].indexOf(j) > -1) {        str += '█';      } else {        str += ' ';      }    }    str += '\n';  }  return str;}console.log(demo(arr)); 

看着挺有意思吧，然后我把这段代码移植到了C++上，代码和效果如下：

#include #include #include using namespace std;class vMe50{private:template int arrLen(T& arr){return sizeof(arr)/sizeof(arr[0]);}public:vMe50(){string str=this->demo();cout << str;}string demo(){vector > arr;int a0[]={1, 9, 12, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44};int a1[]={2, 8, 12, 13, 19, 20, 23, 31, 39, 44};int a2[]={3, 7, 12, 14, 18, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 44};int a3[]={4, 6, 12, 15, 17, 20, 23, 36, 39, 44};int a4[]={5, 5, 12, 16, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44};vector b0(a0,a0+this->arrLen(a0));vector b1(a1,a1+this->arrLen(a1));vector b2(a2,a2+this->arrLen(a2));vector b3(a3,a3+this->arrLen(a3));vector b4(a4,a4+this->arrLen(a4));arr.push_back(b0);arr.push_back(b1);arr.push_back(b2);arr.push_back(b3);arr.push_back(b4);string str;for(short i=0;iain(){vMe50* v=new vMe50();delete v;return true;}

效果一样，但代码麻烦了不少，毕竟C++是强类型语言，处理不规则数组不像JavaScript那样轻松。 

然后我又把代码移植到了世界上最好的编程语言php上，大家看下优不优雅，代码和效果如下

demo(); } private function demo(){  $arr=[   [1, 9, 12, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44],   [2, 8, 12, 13, 19, 20, 23, 31, 39, 44],   [3, 7, 12, 14, 18, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 44],   [4, 6, 12, 15, 17, 20, 23, 36, 39, 44],   [5, 5, 12, 16, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44],];  $str="";  foreach($arr as $key=>&$value){   foreach(range(0,50) as $k=>&$v){    if(in_array($v, $value)){     $str.="8";    }else{     $str.=" ";    }   }   $str.="\n";  }  return $str; }}new vMe50();

 确实比C++版简单不少，毕竟php的array实现了各种类型的数组。

然后我又把代码用java重写一遍，代码和效果如下：

import java.util.Arrays;import java.util.List;import java.util.LinkedList;public class vMe50{ public static void main(String[] args){  System.out.print(   demo()  ); } private static String demo(){  List > arr=new LinkedList<>();  arr.add(new LinkedList<>(Arrays.asList(1, 9, 12, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44)));  arr.add(new LinkedList<>(Arrays.asList(2, 8, 12, 13, 19, 20, 23, 31, 39, 44)));  arr.add(new LinkedList<>(Arrays.asList(3, 7, 12, 14, 18, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 44)));  arr.add(new LinkedList<>(Arrays.asList(4, 6, 12, 15, 17, 20, 23, 36, 39, 44)));  arr.add(new LinkedList<>(Arrays.asList(5, 5, 12, 16, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44)));  String str="";  for(int i=0;i

class vMe50: def __init__(self):  print(self.demo()) def demo(self):  arr=(    (1, 9, 12, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44),    (2, 8, 12, 13, 19, 20, 23, 31, 39, 44),    (3, 7, 12, 14, 18, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 44),    (4, 6, 12, 15, 17, 20, 23, 36, 39, 44),    (5, 5, 12, 16, 20, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44)   )  str=""  for i in arr:   for j in range(0,50):    if j in i:     str+="8"    else:     str+=" "   str+="\n";  return strv=vMe50();