📄 半角2全角.txt
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/// <summary>
/// 判断字符是否英文半角字符或标点
/// </summary>
/// <remarks>
/// 32 空格
/// 33-47 标点
/// 48-57 0~9
/// 58-64 标点
/// 65-90 A~Z
/// 91-96 标点
/// 97-122 a~z
/// 123-126 标点
/// </remarks>
public static bool IsBjChar(char c)
{
int i = (int)c;
return i >= 32 && i <= 126;
}
/// <summary>
/// 判断字符是否全角字符或标点
/// </summary>
/// <remarks>
/// <para>全角字符 - 65248 = 半角字符</para>
/// <para>全角空格例外</para>
/// </remarks>
public static bool IsQjChar(char c)
{
if (c == '\u3000') return true;
int i = (int)c - 65248;
if (i < 32) return false;
return IsBjChar((char)i);
}
/// <summary>
/// 将字符串中的全角字符转换为半角
/// </summary>
public static string ToBj(string s)
{
if (s == null || s.Trim() == string.Empty) return s;
StringBuilder sb = new StringBuilder(s.Length);
for (int i = 0; i < s.Length; i++)
{
if (s[i] == '\u3000')
sb.Append('\u0020');
else if (IsQjChar(s[i]))
sb.Append((char)((int)s[i] - 65248));
else
sb.Append(s[i]);
}
return sb.ToString();
}
2005-9-29 发现更简单的方法。
添加 Microsoft Visual Basic.NET Runtime 引用。
Console.WriteLine(Microsoft.VisualBasic.Strings.StrConv("ａｂｃｄｅｆｇ", VbStrConv.Narrow, 0));
String Asc2Hz(String s)
{
String hz="";
for (int i=1;i<=s.Length();i++)
{
BYTE c=s[i];
if (c>' ' && c<'~')
hz=hz+String((char)163)+String((char)(128+c));
else if(c==' ')//半角空格转换为全角
hz=hz+String((char)161)+String((char)161);
else
hz=hz+String((char)c);
}
return(hz);
}
String Hz2Asc(String s)
{
String Asc="";
BYTE c1,c2;
for(int i=1;i<=s.Length();i++)
{
c1=s[i];
c2=s[i+1];
if (c1==163)//判断是否为全角字符
{
Asc=Asc+String((char)(c2-128));
i++;
continue;
}
if (c1>163)//判断是否为文字
{
Asc=Asc+String((char)c1);
Asc=Asc+String((char)c2);
i++;
continue;
}
if ((c1==161)&&(c2==161))//全角空格是个特例，另加处理
{
Asc=Asc+" ";
i++;
continue;
}
Asc=Asc+String(char(c1));
}
return Asc;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
Edit3->Text=Hz2Asc(Edit2->Text);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button3Click(TObject *Sender)
{
Edit2->Text=Asc2Hz(Edit1->Text);
}
String AscToHz(String s)
{
String hz="";
for (int i=1;i<=s.Length();i++)
{
BYTE c=s[i];
if(c>' '&&c<='~')
{
hz=hz+String((char)163)+String((char)(128+c));
}
else
{
hz=hz+String((char)c);
}
}
return(hz);
}
//全角变半角
String HzToAsc(String s)
{
String hz="";
for (int i=1;i<=(s.Length()-1);i++)
{
BYTE c=s[i];
if(c==163)
{
hz=hz+String((char)(s[i+1]-128));
i++;
}
else
{
if (c==161)
{
BYTE d=s[i+1];
if (d==161)
{
hz=hz+String(' ');
i++;
}
else
{
hz=hz+String((char)c);
}
}
else
{
hz=hz+String((char)c);
}
}
}
hz=hz+String((char)s[s.Length()]);
return(hz);
}
}
zswang(伴水清清)(专家门诊清洁工) 写的,参考一下吧
void Str2GBReplace(CString &mString)
{
mString.Replace(" ", " ");
mString.Replace("!", "！");
mString.Replace("""", "＂");
mString.Replace("#", "＃");
mString.Replace("$", "＄");
mString.Replace("%", "％");
mString.Replace("&", "＆");
mString.Replace("'", "＇");
mString.Replace("(", "（");
mString.Replace(")", "）");
mString.Replace("*", "＊");
mString.Replace("+", "＋");
mString.Replace(",", "，");
mString.Replace("-", "－");
mString.Replace(".", "。");
mString.Replace("/", "／");
mString.Replace("0", "０");
mString.Replace("1", "１");
mString.Replace("2", "２");
mString.Replace("3", "３");
mString.Replace("4", "４");
mString.Replace("5", "５");
mString.Replace("6", "６");
mString.Replace("7", "７");
mString.Replace("8", "８");
mString.Replace("9", "９");
mString.Replace(":", "：");
mString.Replace(";", "；");
mString.Replace("<", "＜");
mString.Replace("=", "＝");
mString.Replace(">", "＞");
mString.Replace("?", "？");
mString.Replace("@", "＠");
mString.Replace("A", "Ａ");
mString.Replace("B", "Ｂ");
mString.Replace("C", "Ｃ");
mString.Replace("D", "Ｄ");
mString.Replace("E", "Ｅ");
mString.Replace("F", "Ｆ");
mString.Replace("G", "Ｇ");
mString.Replace("H", "Ｈ");
mString.Replace("I", "Ｉ");
mString.Replace("J", "Ｊ");
mString.Replace("K", "Ｋ");
mString.Replace("L", "Ｌ");
mString.Replace("M", "Ｍ");
mString.Replace("N", "Ｎ");
mString.Replace("O", "Ｏ");
mString.Replace("P", "Ｐ");
mString.Replace("Q", "Ｑ");
mString.Replace("R", "Ｒ");
mString.Replace("S", "Ｓ");
mString.Replace("T", "Ｔ");
mString.Replace("U", "Ｕ");
mString.Replace("V", "Ｖ");
mString.Replace("W", "Ｗ");
mString.Replace("X", "Ｘ");
mString.Replace("Y", "Ｙ");
mString.Replace("Z", "Ｚ");
mString.Replace("[", "［");
mString.Replace("\\", "＼");
mString.Replace("]", "］");
mString.Replace("^", "＾");
mString.Replace("_", "＿");
mString.Replace("`", "｀");
mString.Replace("a", "ａ");
mString.Replace("b", "ｂ");
mString.Replace("c", "ｃ");
mString.Replace("d", "ｄ");
mString.Replace("e", "ｅ");
mString.Replace("f", "ｆ");
mString.Replace("g", "ｇ");
mString.Replace("h", "ｈ");
mString.Replace("i", "ｉ");
mString.Replace("j", "ｊ");
mString.Replace("k", "ｋ");
mString.Replace("l", "ｌ");
mString.Replace("m", "ｍ");
mString.Replace("n", "ｎ");
mString.Replace("o", "ｏ");
mString.Replace("p", "ｐ");
mString.Replace("q", "ｑ");
mString.Replace("r", "ｒ");
mString.Replace("s", "ｓ");
mString.Replace("t", "ｔ");
mString.Replace("u", "ｕ");
mString.Replace("v", "ｖ");
mString.Replace("w", "ｗ");
mString.Replace("x", "ｘ");
mString.Replace("y", "ｙ");
mString.Replace("z", "ｚ");
mString.Replace("{", "｛");
mString.Replace("|", "｜");
mString.Replace("}", "｝");
mString.Replace("~", "～");
}
/*在Edit1中输入全角字符、中文、半角字符或混杂输入。
单击Button1，Edit1中的文字显示到Edit2中并转换了所有的全角字符。
注意，程序没有对特殊字符如255(按住ALT再按小键盘的2、5、5输入)等作出正确反应。*/
void __fastcall TForm1::Button1Click(TObject *Sender)
{
int nLength=Edit1->Text.Length();
if (nLength==0)
return;
AnsiString str="";
char *cTmp=new char[nLength+1];
StrPCopy(cTmp,Edit1->Text);
BYTE c1,c2;
int i;
for (i=0;i<nLength;i++)
{
c1=cTmp[i];
c2=cTmp[i+1];
if (c1==163)//判断是否为全角字符
{
str=str+AnsiString((char)(c2-128));
i++;
continue;
}
if (c1>163)//判断是否为文字
{
str=str+AnsiString((char)c1);
str=str+AnsiString((char)c2);
i++;
continue;
}
if ((c1==161) && (c2==161))//全角空格是个特例，另加处理
{
str=str+" ";
i++;
continue;
}
str=str+ AnsiString(char(c1));
}
Edit2->Text=str;
delete cTmp;cTmp=NULL;
}
以上代码C++Builder5.0/Win98 SE下编译通过。
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