VC 判断CString字符串中各位是数字，大小写字母，符号，汉字。(UNICODE和ANSI)

其中日文、中文简体、繁体没法分开，编码都是在一起的。

// UNICODE字符集

CString str =  L"0123abc雲中鶴+-*ほニホ";
	CString shuzi,biaodianfuhao,hanzi,daxiezimu,xiaoxiezimu;

	for (int i = 0 ; i <str.GetLength();i++)
	{
		int unicode = (int)str.GetAt(i);
		if (unicode <= '9' && unicode >= '0')
		{
			shuzi += str.GetAt(i);
		}
		else if (unicode <= 'z' && unicode >= 'a')
		{
			xiaoxiezimu += str.GetAt(i);
		}
		else if (unicode <= 'Z' && unicode >= 'A')
		{
			daxiezimu += str.GetAt(i);
		}
		else if (unicode > 255)
		{
			hanzi += str.GetAt(i);
		}
		else
		{
			biaodianfuhao += str.GetAt(i);
		}
	}

//多字节字符集

CString str;   
	str = "0123abc雲中鶴+-*ほニホ";   
	int   lens;   
	lens = (int)strlen(str);   

	unsigned char hanzi[20],daxiezimu[20],xiaoxiezimu[20],shuzi[20],biaodianfuhao[20];

	unsigned char ansi;   
	int hanzi_len,daxiezimu_len,xiaoxiezimu_len,shuzi_len,biaodianfuhao_len;
	hanzi_len=daxiezimu_len=xiaoxiezimu_len=shuzi_len=biaodianfuhao_len=0;

	for(int i=0;i<lens;i++)
	{   
		ansi = str[i];   
		if (ansi <= '9' && ansi >= '0')
		{
			shuzi[shuzi_len++] = ansi;
		}
		else if (ansi <= 'z' && ansi >= 'a')
		{
			xiaoxiezimu[xiaoxiezimu_len++] = ansi;
		}
		else if (ansi <= 'Z' && ansi >= 'A')
		{
			daxiezimu[daxiezimu_len++] = ansi;
		}
		else if (ansi > 127)
		{
			hanzi[hanzi_len++] = ansi;
			hanzi[hanzi_len++] = str[++i];
		}
		else
		{
			biaodianfuhao[biaodianfuhao_len++] = ansi;
		}
   
	}   
	shuzi[shuzi_len] = '\0';   
	daxiezimu[daxiezimu_len] = '\0';
	xiaoxiezimu[xiaoxiezimu_len] = '\0'; 
	biaodianfuhao[biaodianfuhao_len] = '\0'; 
	hanzi[hanzi_len] = '\0';