从大学到毕业最后到职场，程序员的代码进化史！

拼搏现实的明天。 2022-09-10 13:11 208阅读 0赞

**初中/高中时初入门**

10 PRINT "HELLO WORLD"
    
    20 END

**大一**

program Hello(input, output)
    
        begin
    
          writeln('Hello World')
    
        end.

**大四**

(defun hello
    
        (print
    
          (cons 'Hello (list 'World))))

**初入职场**

#include <stdio.h>
    
      void main(void)
    
      {
    
        char *message[] = {"Hello ", "World"};
    
        int i;
    
        for(i = 0; i < 2; ++i)
    
          printf("%s", message[i]);
    
        printf("\n");
    
      }

**中级专家**

#include <iostream.h>
    
      #include <string.h>
    
      class string
    
      {
    
      private:
    
        int size;
    
        char *ptr;
    
      string() : size(0), ptr(new char[1]) { ptr[0] = 0; }
    
        string(const string &s) : size(s.size)
    
        {
    
          ptr = new char[size + 1];
    
          strcpy(ptr, s.ptr);
    
        }
    
        ~string()
    
        {
    
          delete [] ptr;
    
        }
    
        friend ostream &operator <<(ostream &, const string &);
    
        string &operator=(const char *);
    
      };
    
      ostream &operator<<(ostream &stream, const string &s)
    
      {
    
        return(stream << s.ptr);
    
      }
    
      string &string::operator=(const char *chrs)
    
      {
    
        if (this != &chrs)
    
        {
    
          delete [] ptr;
    
        size = strlen(chrs);
    
          ptr = new char[size + 1];
    
          strcpy(ptr, chrs);
    
        }
    
        return(*this);
    
      }
    
      int main()
    
      {
    
        string str;
    
        str = "Hello World";
    
        cout << str << endl;
    
        return(0);
    
      }

**主程序员**

[
    
      uuid(2573F8F4-CFEE-101A-9A9F-00AA00342820)
    
      ]
    
      library LHello
    
      {
    
          // bring in the master library
    
          importlib("actimp.tlb");
    
          importlib("actexp.tlb");
    
          // bring in my interfaces
    
          #include "pshlo.idl"
    
          [
    
          uuid(2573F8F5-CFEE-101A-9A9F-00AA00342820)
    
          ]
    
          cotype THello
    
      {
    
      interface IHello;
    
      interface IPersistFile;
    
      };
    
      };
    
      [
    
      exe,
    
      uuid(2573F890-CFEE-101A-9A9F-00AA00342820)
    
      ]
    
      module CHelloLib
    
      {
    
          // some code related header files
    
          importheader(<windows.h>);
    
          importheader(<ole2.h>);
    
          importheader(<except.hxx>);
    
          importheader("pshlo.h");
    
          importheader("shlo.hxx");
    
          importheader("mycls.hxx");
    
          // needed typelibs
    
          importlib("actimp.tlb");
    
          importlib("actexp.tlb");
    
          importlib("thlo.tlb");
    
          [
    
          uuid(2573F891-CFEE-101A-9A9F-00AA00342820),
    
          aggregatable
    
          ]
    
          coclass CHello
    
      {
    
      cotype THello;
    
      };
    
      };
    
      #include "ipfix.hxx"
    
      extern HANDLE hEvent;
    
      class CHello : public CHelloBase
    
      {
    
      public:
    
          IPFIX(CLSID_CHello);
    
          CHello(IUnknown *pUnk);
    
          ~CHello();
    
          HRESULT  __stdcall PrintSz(LPWSTR pwszString);
    
      private:
    
          static int cObjRef;
    
      };
    
      #include <windows.h>
    
      #include <ole2.h>
    
      #include <stdio.h>
    
      #include <stdlib.h>
    
      #include "thlo.h"
    
      #include "pshlo.h"
    
      #include "shlo.hxx"
    
      #include "mycls.hxx"
    
      int CHello::cObjRef = 0;
    
      CHello::CHello(IUnknown *pUnk) : CHelloBase(pUnk)
    
      {
    
          cObjRef++;
    
          return;
    
      }
    
      HRESULT  __stdcall  CHello::PrintSz(LPWSTR pwszString)
    
      {
    
          printf("%ws
    
    ", pwszString);
    
          return(ResultFromScode(S_OK));
    
      }
    
      CHello::~CHello(void)
    
      {
    
      // when the object count goes to zero, stop the server
    
      cObjRef--;
    
      if( cObjRef == 0 )
    
          PulseEvent(hEvent);
    
      return;
    
      }
    
      #include <windows.h>
    
      #include <ole2.h>
    
      #include "pshlo.h"
    
      #include "shlo.hxx"
    
      #include "mycls.hxx"
    
      HANDLE hEvent;
    
      int _cdecl main(
    
      int argc,
    
      char * argv[]
    
      ) {
    
      ULONG ulRef;
    
      DWORD dwRegistration;
    
      CHelloCF *pCF = new CHelloCF();
    
      hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
    
      // Initialize the OLE libraries
    
      CoInitializeEx(NULL, COINIT_MULTITHREADED);
    
      CoRegisterClassObject(CLSID_CHello, pCF, CLSCTX_LOCAL_SERVER,
    
          REGCLS_MULTIPLEUSE, &dwRegistration);
    
      // wait on an event to stop
    
      WaitForSingleObject(hEvent, INFINITE);
    
      // revoke and release the class object
    
      CoRevokeClassObject(dwRegistration);
    
      ulRef = pCF->Release();
    
      // Tell OLE we are going away.
    
      CoUninitialize();
    
      return(0); }
    
      extern CLSID CLSID_CHello;
    
      extern UUID LIBID_CHelloLib;
    
      CLSID CLSID_CHello = { /* 2573F891-CFEE-101A-9A9F-00AA00342820 */
    
          0x2573F891,
    
          0xCFEE,
    
          0x101A,
    
          { 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
    
      };
    
      UUID LIBID_CHelloLib = { /* 2573F890-CFEE-101A-9A9F-00AA00342820 */
    
          0x2573F890,
    
          0xCFEE,
    
          0x101A,
    
          { 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
    
      };
    
      #include <windows.h>
    
      #include <ole2.h>
    
      #include <stdlib.h>
    
      #include <string.h>
    
      #include <stdio.h>
    
      #include "pshlo.h"
    
      #include "shlo.hxx"
    
      #include "clsid.h"
    
      int _cdecl main(
    
      int argc,
    
      char * argv[]
    
      ) {
    
      HRESULT  hRslt;
    
      IHello        *pHello;
    
      ULONG  ulCnt;
    
      IMoniker * pmk;
    
      WCHAR  wcsT[_MAX_PATH];
    
      WCHAR  wcsPath[2 * _MAX_PATH];
    
      // get object path
    
      wcsPath[0] = '\0';
    
      wcsT[0] = '\0';
    
      if( argc > 1) {
    
          mbstowcs(wcsPath, argv[1], strlen(argv[1]) + 1);
    
          wcsupr(wcsPath);
    
          }
    
      else {
    
          fprintf(stderr, "Object path must be specified\n");
    
          return(1);
    
          }
    
      // get print string
    
      if(argc > 2)
    
          mbstowcs(wcsT, argv[2], strlen(argv[2]) + 1);
    
      else
    
          wcscpy(wcsT, L"Hello World");
    
      printf("Linking to object %ws\n", wcsPath);
    
      printf("Text String %ws\n", wcsT);
    
      // Initialize the OLE libraries
    
      hRslt = CoInitializeEx(NULL, COINIT_MULTITHREADED);
    
      if(SUCCEEDED(hRslt)) {
    
          hRslt = CreateFileMoniker(wcsPath, &pmk);
    
          if(SUCCEEDED(hRslt))
    
      hRslt = BindMoniker(pmk, 0, IID_IHello, (void **)&pHello);
    
          if(SUCCEEDED(hRslt)) {
    
      // print a string out
    
      pHello->PrintSz(wcsT);
    
      Sleep(2000);
    
      ulCnt = pHello->Release();
    
      }
    
          else
    
      printf("Failure to connect, status: %lx", hRslt);
    
          // Tell OLE we are going away.
    
          CoUninitialize();
    
          }
    
      return(0);
    
      }

**初级黑客**

#!/usr/local/bin/perl
    
      $msg="Hello, world.\n";
    
      if ($#ARGV >= 0) {
    
        while(defined($arg=shift(@ARGV))) {
    
          $outfilename = $arg;
    
          open(FILE, ">" . $outfilename) || die "Can't write $arg: $!\n";
    
          print (FILE $msg);
    
          close(FILE) || die "Can't close $arg: $!\n";
    
        }
    
      } else {
    
        print ($msg);
    
      }
    
    1;

**中级黑客**

#include <stdio.h>
    
    #define S "Hello, World\n"
    
    main(){exit(printf(S) == strlen(S) ? 0 : 1);}

**资深黑客**

% cc -o a.out ~/src/misc/hw/hw.c
    
    % a.out

**大师级黑客**

% echo "Hello, world."

**初级经理**

10 PRINT "HELLO WORLD"
    
    20 END

**中级经理**

mail -s "Hello, world." bob@b12
    
    Bob, could you please write me a program that prints "Hello, world."?
    
    I need it by tomorrow.
    
      ^D

**高级经理**

% zmail jim
    
    I need a "Hello, world." program by this afternoon.

**高管**

% letter
    
    letter: Command not found.
    
    % mail
    
    To: ^X ^F ^C
    
    % help mail
    
    help: Command not found.
    
    % damn!
    
    !: Event unrecognized
    
    % logout

——————————————

**- End -**

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