锘??xml version="1.0" encoding="utf-8" standalone="yes"?> CString CTestExcelChange091230Dl 2.鍏ㄨ杞崲涓哄崐瑙?/p>
CString CSpss::SbcToDbc(CString stringText) 榪欐紼嬪簭浠婂ぉ鐪嬫潵鏈夎澶氫笉濂界殑鍦版柟錛岀幇灝嗙涓涓▼搴忓叾鏀逛負濡備笅錛?/p>
void CTestDlg2008Dlg::DbcToSbc(const CString stringText,CString &str)
{
}
{
}
{
}
2010.7.3
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鍦–/C++璇█涓紝char鍙橀噺涓轟竴涓瓧鑺傦紝8浣嶏紝signed char琛ㄧず鐨勮寖鍥達細-128~127銆?128鍦ㄥ唴瀛樹腑鐨勪簩榪涘埗琛ㄧず涓?000 0000錛?27鍦ㄥ唴瀛樹腑鐨勮〃紺轟負0111 1111銆戯紱unsign char琛ㄧず鐨勮寖鍥達細0000 0000~1111 1111錛屽嵆0~255
娉ㄦ剰錛氭暣鏁板湪鍐呭瓨涓槸浠ヨˉ鐮佸瓨鍙栫殑錛屾鏁扮殑琛ョ爜錛氱瓑浜庤嚜宸憋紝璐熸暟鐨勮ˉ鐮侊細鍙栧弽鍔?錛屼緥濡傦細127鍦ㄥ唴瀛樹腑琛ㄧず涓?111 1111錛?-127鍦ㄥ唴瀛樹腑琛ㄧず涓簙(0111 1111)+1=1000 0001錛?鍋囧畾鏌愬唴瀛樺崟鍏僷鐨勫唴瀹規槸1111 1111錛岄偅涔堝畠涓瀹氭槸255鍚楋紵瀹為檯涓婂彇鍐充簬浣犵殑浠g爜鏄鎶婂畠鐪嬫垚鏈夌鍙瘋繕鏄棤絎﹀彿鏁幫紝濡傛灉鏄棤絎﹀彿鍒欒〃紺?55錛屽鏋滄槸鏈夌鍙峰垯琛ㄧず-1銆愬浜庢湁絎﹀彿鏁幫紝鏈楂樹綅涓虹鍙蜂綅錛?琛ㄧず璐燂紝0琛ㄧず姝c戯細
signed char c=*p; //c=-1
unsigned char c=*p;//c=255
榪欎篃瑙i噴浜嗕笂闈㈣繖孌典唬鐮佽兘鍒ゆ柇緙栬瘧鍣ㄩ粯璁har綾誨瀷
鍦?char 銆乽nsigned char銆乻igned char涓夎呯浉浜掕漿鎹腑錛屽茍涓嶄涪澶辨暟鎹?/strong>
鍦ㄥ疄闄呭伐浣滀腑錛宑har鐨勭敤閫旇繕鏄緢澶х殑銆備互涓嬪皢宸ヤ綔涓亣鍒扮殑闂璁板綍銆?br>1.unsigned char m_ucStr[] = {0x31,0x32};
褰揷har閲岄潰鏄?6榪涘埗鏃訛紝鍐呭瓨閲岄潰鍊兼槸涓鏍風殑銆?br> 
1.1 鑻ユ兂瀹炵幇鍐呭瓨閲岀殑鏁版嵁鏄?132閲?br> unsigned char *str = new unsigned char[sizeof(m_ucStr)];
CopyMemory(str,array,sizeof(m_ucStr));
2.unsigned char m_ucStr[] = {31,32};
褰揷har閲岄潰鏄?0榪涘埗鏃訛紝鍐呭瓨10榪涘埗杞負16榪涘埗
3.鍦ㄨ繘鍒?char * 鍜?char *瀛楃涓插鍒舵椂錛岃嫢涓嶆寚瀹氭簮瀛楃涓查暱搴︼紝鐢?strcpy,鑻ユ寚瀹氭簮瀛楃涓查暱搴︼紝鐢╯trncpy.浣嗗綋婧愬瓧絎﹀唴瀛樻湁 0x00鏃訛紝鍒欏啀涔熶笉鑳界敤 strcpy鍜宻trncpy浜嗭紝鍙兘鐢?memcpy.鍥犱負memcpy涓嶄互0x00涓烘寚瀹氱粨鏉熺
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class String

{
public:
String(const char *str = NULL);//鏅氭瀯閫犲嚱鏁?br>
String(const String &other);//鎷瘋礉鏋勯犲嚱鏁?br>
~String(void);//鏅氭瀽鏋勫嚱鏁?br>
String &operator = (const String &other);//璧嬪煎嚱鏁?br>
protected:
private:
char *m_data;
};
String::~String(void)

{
delete []m_data;
}
String::String(const char *str /**//* = NULL */)

{
if(str == NULL)
{
m_data = new char[1];
*m_data = '\0';
}
else
{
int len = strlen(str);
m_data = new char[len+1];
strcpy(m_data,str);
}
}
String::String(const String &other)

{
int length = strlen(other.m_data);
m_data = new char[length+1];
strcpy(m_data,other.m_data);
}
String &String::operator=(const String &other)

{
if(this == &other)
{
return *this;
}
delete []m_data;
int length = strlen(other.m_data);
m_data = new char[length+1];
strcpy(m_data,other.m_data);
return *this;
}
int main(int argc, char* argv[])

{
String str("Hello");
String str1 = str;
String str2;
str2 = str;
return 0;
}