zoukankan      html  css  js  c++  java
  • WinAPI 字符及字符串函数(5): IsCharAlpha 是否是个字母

    unit Unit1;
    
    interface
    
    uses
      Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
      Dialogs, StdCtrls;
    
    type
      TForm1 = class(TForm)
        Button1: TButton;
        Button2: TButton;
        Button3: TButton;
        Button4: TButton;
        Button5: TButton;
        procedure Button1Click(Sender: TObject);
        procedure Button2Click(Sender: TObject);
        procedure Button3Click(Sender: TObject);
        procedure Button4Click(Sender: TObject);
        procedure Button5Click(Sender: TObject);
      end;
    
    var
      Form1: TForm1;
    
    implementation
    
    {$R *.dfm}
    
    procedure TForm1.Button1Click(Sender: TObject);
    var
      c: Char;
      b: BOOL;
    begin
      c := #65; {A}
      b := IsCharAlpha(c);
      ShowMessage(BoolToStr(b, True)); {True}
    end;
    
    procedure TForm1.Button2Click(Sender: TObject);
    var
      c: Char;
      b: BOOL;
    begin
      c := #97; {a}
      b := IsCharAlpha(c);
      ShowMessage(BoolToStr(b, True)); {True}
    end;
    
    procedure TForm1.Button3Click(Sender: TObject);
    var
      c: Char;
      b: BOOL;
    begin
      c := #48; {0}
      b := IsCharAlpha(c);
      ShowMessage(BoolToStr(b, True)); {False}
    end;
    
    procedure TForm1.Button4Click(Sender: TObject);
    var
      c: Char;
      b: BOOL;
    begin
      c := #13; {回车键}
      b := IsCharAlpha(c);
      ShowMessage(BoolToStr(b, True)); {False}
    end;
    
    procedure TForm1.Button5Click(Sender: TObject);
    var
      c: WideChar;
      b: BOOL;
    begin
      c := #19975; {万}
      b := IsCharAlpha(c);
      ShowMessage(BoolToStr(b, True)); {False}
    end;
    
    end.
    
  • 相关阅读:
    兜底方案只能用来兜底,而不能完全依靠它---记一次数据库唯一索引DuplicateKeyException异常的优化
    不注重开发细节,活该你忙!
    二叉树存储
    并查集模板
    684. 冗余连接
    820. 单词的压缩编码
    1102. 得分最高的路径
    滑动窗口模板
    古道西风“瘦马”
    西江月·凉凉
  • 原文地址:https://www.cnblogs.com/del/p/1327299.html
Copyright © 2011-2022 走看看