Procedure    URPOSE

Uses Dos,Crt;

Const

  VersionNum = 'V1.0 BETA';

  ProgNameStr = 'NEWPROJ.EXE';

  ProgNameShortStr = 'NP.EXE';

  copyRightStr = ProgNameStr+' ' + VersionNum +

                ', Copyright 1992 - 1993, Ken Fox. All Rights Reserved.';

  DefaultFileName = 'NEWPROJ.DAT';

Const

SwitchLength = ;   {   maxlegth of a switch to be tested for}

ArgLength = ;     {   max length of an argument from the commandline}

DelimLength = ;     {   maxlength of delimiter if used}

SwitchNum = ;      {   the number of switches and hence the size of the Array}

                    {      of switches  without arguments                  }

ArgdSwitchNum = ;  {   the number of switches and hence the size of the Array}

                    {      of switches  With arguments                 }

DelimNum = ;       {   number of args With delimited Strings          }

Type

SwitchType = String[Switchlength];

ArgType = String[ArgLength];

DelimType = String[DelimLength];

SwitchesType = Record

         Switch : Array[..SwitchNum] of SwitchType;

         Present : Array[..switchNum] of Boolean

         end;

SwitchWithArgType = Record

              Switch  : Array[..ArgdSwitchNum] Of SwitchType;

              Arg     : Array[..ArgdSwitchNum] Of ArgType;

              Present : Array[..ArgdSwitchNum] of Boolean

              end;

SwitchedArgWithEmbeddedSpacesType = Record

              Switch     : Array[..DelimNum] Of SwitchType;

              StartDelim : Array[..DelimNum] of DelimType;

              Arg        : Array[..DelimNum] Of ArgType;

              endDelim   : Array[..DelimNum] of DelimType;

              Present    : Array[..DelimNum] of Boolean

              end;

CommandLineArrayType = Record

           Switches : SwitchesType;

           ArgDSw   : SwitchWithArgType;

           {    DelimSw  : SwitchedArgWithEmbeddedSpacesType; }

           NoParams : Boolean           {True if nothing on commandline}

           end;

Var

NoCase,

ConvertArgsToUpper

                  : Boolean;

CmdArray                : CommandLineArrayType;

Procedure   initCmdArray(Var CmdArray : CommandLineArrayType);

begin

   {DEFAULT VALUES SET}

   NoCase := True;

   ConvertArgsToUpper := True;

with CmdArray do

   begin

   Switches.Switch[] := '/?' ;     {default help String}

   Switches.Switch[] := '/h' ;     {default help String}

   Switches.Switch[] := '/H' ;     {default help String}

   Switches.Switch[] := 'HELP' ;   {default help String}

   Switches.Switch[] := 'help' ;   {default help String}

   Switches.Switch[] := 'INFO'     {show author contact Info}

{   Switches.Switch[6] := '  ' ;}   {NOT USED}

{   Switches.Switch[7] := '  ' ;}   {NOT USED}

{   Switches.Switch[8] := '  ' ;}   {NOT USED}

{   Switches.Switch[9] := '  ' ;}   {NOT USED}

{   Switches.Switch[10] := '  ' ;}  {NOT USED}

{   Switches.Switch[11] := '  ' ;}  {NOT USED}

{   Switches.Switch[12] := '  ' ;}  {NOT USED}

{  ArgDSw.Switch[1] := '' ;}       {not used}

{  ArgDSw.Switch[2] := '' ;}       {not used}

{  ArgDSw.Switch[3] := '' ;}       {NOT USED}

{  ArgDSw.Switch[4] := '' ;}       {NOT USED}

{  ArgDSw.Switch[5] := '' ;}       {NOT USED}

{  ArgDSw.Switch[6] := '' ;}       {NOT USED}

{  ArgDSw.Switch[7] := '' ;}       {NOT USED}

{  ArgDSw.Switch[8] := '' ;}       {NOT USED}

{  ArgDSw.Switch[9] := '' ;}       {NOT USED}

{  ArgDSw.Switch[10] := '' ;}      {NOT USED}

{  ArgDSw.Switch[11] := '' ;}      {NOT USED}

{  ArgDSw.Switch[12] := '' ;}      {NOT USED}

{  ArgDSw.Switch[13] := '' ;}      {NOT USED}

(*

With DelimSw Do

{     Switch[1]     := '' ;     }  {NOT USED}

{     StartDelim[1] := '' ;     }  {NOT USED}

{     endDelim[1]   := '' ;     }  {NOT USED}

{     Switch[2] := '' ;         }  {NOT USED}

{     StartDelim[2] := '' ;     }  {NOT USED}

{     endDelim[2]   := '' ;     }  {NOT USED}

{     Switch[3] := '' ;         }  {NOT USED}

{     StartDelim[3] := '' ;     }  {NOT USED}

{     endDelim[3]   := '' ;     }  {NOT USED}

{     Switch[4] := '' ;         }  {NOT USED}

{     StartDelim[4] := '' ;     }  {NOT USED}

{     endDelim[4]   := '' ;     }  {NOT USED}

{     Switch[5] := '' ;         }  {NOT USED}

{     StartDelim[5] := '' ;     }  {NOT USED}

{     endDelim[5]   := '' ;     }  {NOT USED}

{     Switch[6] := '' ;         }  {NOT USED}

{     StartDelim[6] := '' ;     }  {NOT USED}

{     endDelim[6]   := '' ;     }  {NOT USED}

{     Switch[7] := '' ;         }  {NOT USED}

{     StartDelim[7] := '' ;     }  {NOT USED}

{     endDelim[7]   := '' ;     }  {NOT USED}

{     Switch[8] := '' ;         }  {NOT USED}

{     StartDelim[8] := '' ;     }  {NOT USED}

{     endDelim[8]   := '' ;     }  {NOT USED}

{     Switch[9] := '' ;         }  {NOT USED}

{     StartDelim[9] := '' ;     }  {NOT USED}

{     endDelim[9]   := '' ;     }  {NOT USED}

{     Switch[10] := '' ;        }  {NOT USED}

{     StartDelim[10] := '' ;    }  {NOT USED}

{     endDelim[10]   := '' ;    }  {NOT USED}

{     Switch[11] := '' ;        }  {NOT USED}

{     StartDelim[11] := '' ;    }  {NOT USED}

{     endDelim[11]   := '' ;    }  {NOT USED}

( min left), (H)elp, More?

{     Switch[12] := '' ;        }  {NOT USED}

{     StartDelim[12] := '' ;    }  {NOT USED}

{     endDelim[12]   := '' ;    }  {NOT USED}

{     Switch[13] := '' ;        }  {NOT USED}

{     StartDelim[13] := '' ;    }  {NOT USED}

{     endDelim[13]   := '' ;    }  {NOT USED}

{     Switch[14] := '' ;        }  {NOT USED}

{     StartDelim[14] := '' ;    }  {NOT USED}

{     endDelim[14]   := '' ;    }  {NOT USED}

end {with DelimSw }

*)

end; {WITH CmdArray}

end;

Procedure CmdParse(Var CmdArray : CommandLineArrayType;

                             NoCase,

                             ConvertArgsToUpper   : Boolean );

{ Procedure to handle all commandline Parameters With or without regard }

{to Case -- selected by the Boolean Var Nocase -- if True then  everrything}

{is converted to uppercase prior to testing}

{all arguments returned from switches are left in whatever Case they were }

{entered on the commandline unless ConvertArgsToUpper is set to True.}

Const

   Blank = ' ';

Var

   counter                 : Integer;

   Blanks                  : ArgType;

{+++++++++++++++++++++++  Private Procedures to CmdParse Main  +++++++++++++}

Procedure ConvertArgsToUpperCase(Var CmdArray:CommandLineArrayType);

Var

  Counter,

  Counter2   : Integer;

begin   {--------->>>> ConvertArgsToUpperCase <<<<------------}

  For Counter :=  to ArgDSwitchNum Do

      For Counter2 :=  to Length(CmdArray.ArgDSw.Arg[counter]) DO

          CmdArray.ArgDSw.Arg[counter,Counter2] :=

                UPCASE(CmdArray.ArgDSw.Arg[counter,Counter2] );

end;    {--------->>>> ConvertArgsToUpperCase <<<<------------}

{----------------------------------------------------------------------}

Procedure ConvertSwitchesToUpperCase(Var CmdArray:CommandLineArrayType);

Var

  Counter,

  Counter2   : Integer;

begin  {--------->>>> ConvertSwitchesToUpperCase  <<<<------------}

   For Counter :=  to SwitchNum Do

      begin

      For Counter2 :=  to Length(CmdArray.Switches.Switch[counter]) DO

          CmdArray.Switches.Switch[counter,Counter2] :=

             UPCASE(CmdArray.Switches.Switch[counter,Counter2]);

      end;

   For Counter :=  to ArgDSwitchNum Do

      For Counter2 :=  to Length(CmdArray.ArgDSw.Switch[counter]) DO

          CmdArray.ArgDSw.Switch[counter,Counter2] :=

                UPCASE(CmdArray.ArgDSw.Switch[counter,Counter2] );

end;  {--------->>>> ConvertSwitchesToUpperCase  <<<<------------}

{----------------------------------------------------------------------}

Procedure InitializeArrays(Var CmdArray:CommandLineArrayType;

                           Var Nocase : Boolean  );

Var

   Counter

          : Integer;

begin     {--------->>>> InitializeArrays  <<<<------------}

  cmdArray.NoParams := False;

  For Counter :=  to SwitchNum Do

    CmdArray.Switches.present[counter] := False;

  For Counter :=  to ArgDSwitchNum Do

    begin

       CmdArray.ArgDSw.present[counter] := False;

       CmdArray.ArgDSw.Arg[counter] := Blanks;

    end;

  if NoCase then                           {convert all Switches in CmdArray}

     ConvertSwitchesToUpperCase(CmdArray); {to uppercaseif nocase is set to }

                                           {True}

end;       {--------->>>> InitializeArrays  <<<<------------}

{----------------------------------------------------------------------}

Procedure ParseNow(Var CmdArray:CommandLineArrayType;

                           Var Nocase : Boolean  );

Var

Counter,Counter2,

Start,

SwitLen,CurrentArgLen   : Integer;

Blanks                  : ArgType;

TestStr                 : SwitchType;

WorkStr                 : String;

Label

   Next_Parameter;

begin   {--------->>>> ParseNow <<<<------------}

  {check For switches without args first}

  For counter :=  to ParamCount Do

    begin  {number of Parameters Loop}

       TestStr:= ParamStr(counter);

       if Nocase Then    { covert paramStr(counter) to upper Case if NoCase}

          begin          { is set to True}

            WorkStr := TestStr;

            For Counter2 :=  to SwitchLength DO

                TestStr[counter2]  := UPCASE((WorkStr[counter2]));

          end;

      For Counter2 :=  to SwitchNum Do

           begin  { Switches without arguments loop }

              SwitLen := Length(CmdArray.Switches.Switch[Counter2]);

              if CmdArray.Switches.Switch[Counter2] =

                    Copy(TestStr,,SwitLen) then

                    begin

                       CmdArray.Switches.Present[Counter2] := True;

                       Goto Next_Parameter;

                     end;

           end; { Switches without arguments loop }

       For counter2 :=  to ArgDSwitchNum  Do

           begin     { Switches With arguments test loop }

              SwitLen := Length(CmdArray.ArgDSw.Switch[Counter2]);

              if CmdArray.ArgDSw.Switch[Counter2] =

                    Copy(TestStr,,SwitLen) then

                 begin

                    CmdArray.ArgDSw.present[Counter2] := True;

                    Start := length(CmdArray.ArgDSw.Switch[Counter2]) + ;

                    CurrentArgLen := length(paramStr(counter)) - (start-);

                    CmdArray.ArgDSw.Arg[Counter2] :=

                          Copy(ParamStr(Counter),Start,CurrentArgLen);

                    Goto Next_Parameter; {used inplace of an Exit}

                 end;

           end;     { Switches With arguments test loop }

    next_parameter:; {used to speed up execution -- Exit doesn't work here}

    end;        {number of Parameters Loop}

end;    {--------->>>> ParseNow <<<<------------}

Procedure Parsedelimited(Var CmdArray : CommandLineArrayType;

                             NoCase,

                             ConvertArgsToUpper   : Boolean );

{this Procedure will bag any String on the commandline With embedded spaces}

(*  and is delimited by Characters such as "" , {}, [], (), <>, ^^, etc ...*)

begin    {--------->>>> Parsedelimited <<<<------------}

end;     {--------->>>> Parsedelimited <<<<------------}

{----------------------------------------------------------------------}

{+++++++++++++++++++ end  Private Procedures to CmdParse Main  +++++++++++++}

{==================================== MAIN Procedure ===================}

begin           {+++++++++>>>> Procedure CmdParse  <<<<++++++++++++}

  {Init Arrays}

  For counter :=  to ArgLength do      {  the String Blanks needs to be }

      Blanks[Counter] := Blank;         {  global because most routines  }

                                        {  are useing it                 }

  InitCmdArray(CmdArray); { this Procedure located in the cmdparse.h File}

                          { assigns values to switches, etc.}

  InitializeArrays(CmdArray,NoCase);

  If ParamCount =  then                { check command line For null String}

     begin                              { if nullString then set No Params  }

        cmdArray.NoParams := True;      { and return to the calling routine }

        Exit;

     end;

   ParseNow(CmdArray, Nocase);           { routine parses the commandline   }

                                         { passing through the switches w/o }

                                         { arguments first. When Delimited  }

 { If Not(NoDelimited) then }            { switch parsing is added, it will }

   { Parsedelimited(CmdArray,NoCase);}   { occur after all other parsing    }

                                         { as a seperate routine to follow  }

                                         { PARSENOW -- additionally -- add  }

                                         { Boolean Value "NoDelimited" to   }

                                         { calling routine and Cmdparse.h   }

                                         { to bypass checking For delimited }

  if ConvertArgsToUpper then

       ConvertArgsToUpperCase(CmdArray);

end;     {+++++++++>>>> Procedure CmdParse  <<<<++++++++++++}

{======================  end CmdParse MAIN Procedure ===================}

{ /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\}

{                    Parser Utility routines                            }

{ /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\}

Procedure ConvertArgtoNumber(ArgNum : Integer;

                             Var  CmdArray : CommandLineArrayType;

                             Var  ResultNumber: Word);

Var

  code : Integer;

begin    {----------->>>> ConvertArgtoNumber <<<<---------------}

  Val(CmdArray.ArgDsw.Arg[ArgNum],ResultNumber,code);

    if code <>  then

       begin

          WriteLn('Error commandline argument: ',

                       CmdArray.ArgDsw.Switch[ArgNum],'  ',

                       CmdArray.ArgDsw.Arg[ArgNum]);

          Writeln('press enter to continue');

          readln;

          HelpUser;  {see notes}

       end;

end;     {----------->>>> ConvertArgtoNumber <<<<---------------}

{/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\}

Procedure FnameCheck(progname, progname2 :pathStr;

                     errorlevel : Byte);

Var

teststr1,teststr2 :pathStr;

begin    {----------->>>> FnameCheck <<<<---------------}

teststr1 := copy(paramstr(),(length(paramstr()) - (Length(progname)-) ),

                             Length(progname));

teststr2 := copy(paramstr(),(length(paramstr()) - (Length(progname2)-) ),

                             Length(progname2));

if ((teststr1 <> ProgName) and (teststr2 <> ProgName2))

   then

     begin

     WriteLn('Unrecoverable Error in ',progname, ', Check FileNAME');

     halt(Errorlevel);

     end;

end;     {----------->>>> FnameCheck <<<<---------------}

{/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\}

Procedure DispCmdline;

     { use For debugging -- displays the command line parameters}

     { readln at end shows screen Until enter is pressed}

VAr Count : Integer;

begin

ClrScr;

For Count :=  to  SwitchNum do

    if CmdArray.Switches.present[count] then

       WriteLn(CmdArray.Switches.Switch[count],'    Present');

For Count :=  to ArgdSwitchNum  do

    if CmdArray.ArgDsw.present[count] then

       begin

          WriteLn(CmdArray.ArgDsw.Switch[count],'   Present.');

          WriteLn('Value of:  ',CmdArray.ArgDsw.Arg[count]);

       end;

Writeln;

Write('press ENTER to continue');

ReadLn;

Halt();

end;

Procedure CheckHelp;

Var

   COUNT : Byte;

begin

   For count :=  to  do

     if cmdArray.Switches.Present[Count] then

        helpUser;

   if cmdArray.Switches.Present[] then

     displayinfo;

end;

{---------------------------Helpuser --------------------------}

Procedure HelpUser;

begin

   ClrScr;

   Writeln (CopyRightStr);

   WriteLn;

   WriteLn('USAGE: ');

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   Writeln;

   Writeln('Press Enter to continue.');

   ReadLn;

   Writeln;

   WriteLn('EXAMPLE:...............................');

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   WriteLn;

   Writeln (CopyRightStr);

   halt();

 end;

{-------------------------------------------------------------------------}

Procedure DisplayInfo;

   begin

      ClrScr;

      Writeln(copyrightStr);

      Writeln;

      Writeln('Ken Fox');

      WriteLn('1449 Maple Rd.');

      Writeln('Kintnersville Pa. 18930');

      WriteLn('215 672-9713       9 - 5 EST');

      Writeln;

      Writeln('Contact on shareware conference on Internet  -- KEN FOX');

      Writeln;

      halt();

   end;

{--------------------------------------------------------------------------}

this info is For all of the PASCAL conference people:

to use the rotuines in this Program you need to do the following

{$I path.......\Progname.h}

{$I Path.......\Helpuser.PAS}

{$I path.......\CMDPARSE.PAS}

 progname.H is a copy of the CMDPARSE.H File which contains the specific

 settings For the Program you are writing .

 HELPUSER.PAS is a Program specific help routine which get called by

 the routie CHECKHELP in CMDPARSE.PAS if the CheckHelp Procedure is

 used in the main Program. crude but effective.

 CMDPARSE.PAS -- this File contains all of the parsing routines. I keep this

 File in my .....\TP\INCLUDE directory .

 I set up a sepearte directory below the tp directory For each Program

 and copy the Files Helpuser.Pas and cmdparse.h into it thusly each

 copy of these two Files is customized For the give application While

 the actual parsing routines are kept in the INCLUDED FileS directory.

 there's no need to modify CMDPARSE.PAS

 using the parser..

       ) in the CMDPARSE.H File there are templates For all of the Array

 initializations. the switches to search For are manually inserted in to

 each Array item. additionally the Array sizes must be set where indicated

 in the CMDPARSE.H File.

{-------------------------------------------------------------------------}

  THE FOLLOWING ARE THE SETTINGS For Array SIZES

{-------------------------------------------------------------------------}

Const

SwitchLength = ;   {   maxlegth of a switch to be tested for}

ArgLength = ;     {   max length of an argument from the commandline}

DelimLength = ;     {   maxlength of delimiter if used}

SwitchNum = ;      {   the number of switches and hence the size of the Array}

                    {      of switches  without arguments                  }

ArgdSwitchNum = ;  {   the number of switches and hence the size of the Array}

                    {      of switches  With arguments                 }

DelimNum = ;       {   number of args With delimited Strings          }

{-------------------------------------------------------------------------}

     THE FOLLOWING SHOW HOW to INIT THE Array SEARCH VarIABLES..

     THESE LINES ARE ALL CONTAINED in  ---->>>> CMDPARSE.H

{-------------------------------------------------------------------------}

   Switches.Switch[] := '/?' ;     {default help String}

   Switches.Switch[] := '/h' ;     {default help String}

   Switches.Switch[] := '/H' ;     {default help String}

   Switches.Switch[] := 'HELP' ;   {default help String}

   Switches.Switch[] := 'help' ;   {default help String}

   Switches.Switch[] := 'INFO'     {show author contact Info}

{   Switches.Switch[6] := '  ' ;}   {NOT USED}

{---------------------------------}

THE FOLLOWING ARE For SWITCHES WHICH WILL CAPTURE A VALUE AS WELL AS

TEST For THE PRESENCE of THE ARGUMENT

{---------------------------------}

{  ArgDSw.Switch[1] := '' ;}       {not used}

{  ArgDSw.Switch[2] := '' ;}       {not used}

{  ArgDSw.Switch[3] := '' ;}       {NOT USED}

{  ArgDSw.Switch[4] := '' ;}       {NOT USED}

{  ArgDSw.Switch[5] := '' ;}       {NOT USED}

{  ArgDSw.Switch[6] := '' ;}       {NOT USED}

{  ArgDSw.Switch[7] := '' ;}       {NOT USED}

{-------------------------------------------------------------------------}

       ) if you intend to use the routines in HELPUSER.PAS or to perform

a Filename validation  -- there is a template at the beginning of CMDPARSE.H

with Certain Constants which must be set.

Uses Dos,Crt;

Const

  VersionNum = 'V1.0 BETA';

  ProgNameStr = 'NEWPROJ.EXE';

  ProgNameShortStr = 'NP.EXE';

  copyRightStr = ProgNameStr+' ' + VersionNum +

                ', Copyright 1992 - 1993, Ken Fox. All Rights Reserved.';

  DefaultFileName = 'NEWPROJ.DAT';

{-------------------------------------------------------------------------}

      ) To call the Various routines in  the CMDPARSE.PAS File there are

Templates which you can cut and paste into you Program from  CMDPARSE.H

{--------------------------------------------------------------------------}

{                          procs Available in CmdParse.Pas                 }

{ additional info on the following procs may be found in the cmdparse.Pas  }

{ File in the ....\tp\include directory..                                  }

{                                                                          }

{ Procedure DispCmdline;                                                   }

{                                                                          }

{ Procedure CmdParse(Var CmdArray : CommandLineArrayType;                  }

{                            NoCase,                                       }

{                            ConvertArgsToUpper   : Boolean );             }

{                                                                          }

{ Procedure ConvertArgtoNumber(ArgNum : Integer;                           }

{                             Var  CmdArray : CommandLineArrayType;        }

{                             Var  ResultNumber: Word);                    }

{                                                                          }

{ Procedure FnameCheck(progname , progname2 :pathStr;                      }

{                      errorlevel : Byte);                                 }

{                                                                          }

{ Procedure CheckHelp;                                                     }

{                                                                          }

{--------------------------------------------------------------------------}

      ) To test whether an ON/OFF switch is present (such as /?) on the

commandline  use the following:

             if CmdArray.Switches.Present[number] then

                begin

                end;

      ) to get the argument from a switch .

            if CmdArray.ArgDsw.Present[number] then

               WhatEverVariable := CmdArray.ArgDsw.Arg[number];

      ) the Procedure ConvertArgtoNumber is avail to convert a

String on the command line to a decimal number.. this is only good for

for whole numbers w/o nnn. etc.

hope this stuff is useful -- there are other notes and comments sprinkled

throughout so please check those before calling..

finally - in the interest traversing the command tail only once the most

henious of Programming Constructs -- the Goto statement -- has been used.

please forgive me in advance....

questions comments and suggestions are welcome..

see the address in the CMDPASE.DOC File..

CmdParse的更多相关文章

  1. linux 捕获信号处理中遇到的死锁

    tag: 信号 signal  sigchld  死锁 堆栈 我们的程序需要捕获信号自己处理,所以尝试对1-32的信号处理(后面33-64的信号不处理).但是在调试代码时,发现一个线程死锁的问题.程序 ...

  2. debian上安装tmux

    1.安装ncurses库 1.1.获取源码 wget https://invisible-island.net/datafiles/release/ncurses.tar.gz tar xvf ncu ...

随机推荐

  1. QJson 的使用

    下载 源码解压 https://github.com/flavio/qjson 复制 src 目录下所有 .h .cpp .hh 文件到项目目录 qjson,pro 文件添加 INCLUDEPATH ...

  2. Ubuntu安装tftp服务器

    一.安装如下软件包: sudo apt-get install xinetd tftpd tftp 二.在/etc/xinetd.d/目录下创建tftp文件,并输入如下内容. 执行命令:sudo vi ...

  3. linux学习笔记之系统标准：POSIX，ISO C...

    一.POSIX,ISO C,Single UNIX Specification的概念. 1,POSIX:Portable Operating System Interface.可移植操作系统接口.期望 ...

  4. C# 与MySQL

    1. MySQL.Data.dll       http://files.cnblogs.com/files/lwngreat/MySql.Data.rar 2.在工程中添加引用 3. 使用  Mys ...

  5. Java三大特征之多态(三)

    面向对象编程有三大特性:封装.继承.多态. 封装隐藏了类的内部实现机制,可以在不影响使用的情况下改变类的内部结构,同时也保护了数据.对外界而已它的内部细节是隐藏的,暴露给外界的只是它的访问方法. 继承 ...

  6. FTP下文件夹权限的设置755，766，777，644代表什么意思

    一般情况下,为了网站更安全,我们需要给文件或文件夹设置权限,在采用FTP登录的方式下,经常会用到755,766,777,644等设置. 具体这些数字都代表什么意思呢? 这三个数字分别表示:不同用户或用 ...

  7. 通过Wmi实现Hyper-V远程管理(一)

    最近公司需要做Hyper-V的远程管理,在现有产品基础上扩展对Hyper V的管理,实现远程开关机.远程开启虚拟机会话,其他内容可查看MSDN中有对Hyper-V的描述和相关实例代码. Wmi操作hy ...

  8. 一步一步学python(三) - 使用字符串

    1.基本字符串操作 序列和元组的索引.分片.乘法.判断成员资格.求长度.取最小值和最大值对字符串同样适用. 字符串是不可变的 2.字符串格式化 %左侧放字符串右侧放格式化的值.一般情况下使用元组 fo ...

  9. 让C/C++程序一次编译可以发布到多版本Linux之上

    最近页游开放平台比较多, 每个平台要求的Linux版本各不相同, 这给开发人员部署服务器带来了很大的困难. 在本机Linux编译的程序,发布时即便将依赖的so附带到目标Linux环境,仍然会碰到依赖及 ...

  10. 【LeetCode练习题】Permutations

    全排列 Given a collection of numbers, return all possible permutations. For example,[1,2,3] have the fo ...