unit1.pas

这是一个统计字的个数的程序

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Menus;

type
  TForm1 = class(TForm)
    MainMenu1: TMainMenu;
    Memo1: TMemo;
    Edit1: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Edit2: TEdit;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    N1: TMenuItem;
    N2: TMenuItem;
    N3: TMenuItem;
    N4: TMenuItem;
    N5: TMenuItem;
    about: TMenuItem;
    OpenDialog1: TOpenDialog;
    nopen: TMenuItem;
    N6: TMenuItem;
    SaveDialog1: TSaveDialog;
    N7: TMenuItem;
    procedure Button2Click(Sender: TObject);
    procedure N3Click(Sender: TObject);
    procedure N4Click(Sender: TObject);
    procedure aboutClick(Sender: TObject);
    procedure N2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure N6Click(Sender: TObject);
    procedure N7Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button2Click(Sender: TObject);
begin
application.Terminate;
end;

procedure TForm1.N3Click(Sender: TObject);
var
s:string;
i,e,c:integer;
begin
  edit1.Text:='';
  edit2.Text:='';
  s:=memo1.text;
  e:=0;   //    e代表英文字符的个数
  c:=0;   //    c代表汉字字符的个数
  for i:=1 to length(s) do
    begin
    if (ord(s[i])>=33)and(ord(s[i])<=126) then  //当为英文字符时
                                                //Ord()函数将Memo控件中的所有字符转换为对应的数值
      begin
      begin
      inc(e);  //英文字符个数求和
      end;
      edit1.text:=inttostr(e);
      end
      else
      begin
      if (ord(s[i])>=127) then   //当为中文字符时
      begin
      inc(c);
      end;
      edit2.text:=inttostr(c div 2); //每个汉字占2个字节
      end;
  end;


end;

procedure TForm1.N4Click(Sender: TObject);
begin
close;
end;

procedure TForm1.aboutClick(Sender: TObject);
begin
  showmessage('欢迎使用字数统计工具。  作者:成强');
end;

procedure TForm1.N2Click(Sender: TObject);
begin
memo1.PasteFromClipboard;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
n2.Click;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
n3.Click;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
edit1.Enabled:=false;
edit2.Enabled:=false;
end;

procedure TForm1.N6Click(Sender: TObject);
begin
 if  opendialog1.Execute then
 memo1.Lines.LoadFromFile(opendialog1.FileName);
end;

procedure TForm1.N7Click(Sender: TObject);
begin
   //savedialog1.DefaultExt:='txt';                //*****这两个可以搭配
   saveDialog1.Filter := '.TXT';
  if savedialog1.Execute then
     begin
      //memo1.Lines.SaveToFile(savedialog1.FileName);   //*****这两个可以搭配
     memo1.Lines.SaveToFile(savedialog1.FileName +savedialog1.Filter);

     end;
end;

end.