cstring、string、wstring、int、char*、tchar、 int、dword等相互转换代码输出测试

  1 #include <string>
  2 #include <tchar.h>  // _TCHAR
  3 #include <stdlib.h>
  4 #include <iostream>  
  5 #include <atlstr.h>  //Cstring 
  6 #include <atlconv.h> //W2A宏
  7 #include <xstring>
  8 
  9 using namespace std;
 10 
 11 int _tmain(int argc,_TCHAR* argv[])
 12 {
 13     /**********string->cstring ***********/
 14     //setlocale(LC_ALL, "Chinese-simplified");
 15     //wcout.imbue(locale("chs"));
 16     //std::string str = "123456！";
 17     //CString cstr = _T("");
 18     //方式一
 19     //cstr.Format(_T("%s"),str.c_str());
 20     //方式二
 21     //for(int i = 0; i < (int)str.length(); ++i)
 22     //{
 23     //    cstr += str[i]; 
 24     //}
 25     //方式三
 26     //cstr = str.c_str();
 27     //wcout << cstr << endl;
 28 
 29     /************    cstring->string      **************/
 30     //方式一
 31     //CString cstr1 = _T("this is cstring！");
 32     //string str1 = "";
 33     //str1 = cstr1.GetBuffer();
 34     //cstr1.ReleaseBuffer();
 35     //方式二
 36     //for (int i = 0; i < cstr1.GetLength(); ++i)
 37     //{
 38     //    str1 += cstr1[i];
 39     //}
 40     //方式三 W2A宏
 41     //str1 = W2A(cstr1);//用法还没弄懂,需要加入一些文件头 或宏定义   ？？？
 42 
 43     //cout << str1 << endl;
 44 
 45     /************* string-> char*************/
 46     //string str2 = "this is string2！";
 47     //方式一
 48     //char *p = (LPSTR)str2.c_str();
 49     //方式二
 50     //char t[200];
 51     //memset(t, 0,200);
 52     //strcpy(t,str2.c_str());
 53     //方式三   出现warning C4305: “=”: 从“int”到“char”截断   ？？？
 54     //char *pc = new char[str2.length() + 1];
 55     //pc[str2.length()] = '/0';
 56     //for (int i = 0; i < str2.length(); ++i)
 57     //{
 58     //    pc[i] = str2[i];
 59     //}
 60     //pc[str2.length()] = '/0';
 61     //cout << pc << endl;
 62 
 63     /****************** char*->string ******************/
 64     //char *pch = "this a char！";
 65     //方式一  只能用作初始化
 66     //string str3(pch); 
 67     //方式二  assign()赋值
 68     //string str3;
 69     //str3.assign(pch);
 70     //cout << str3 << endl;
 71 
 72     //string是ansi编码字符char
 73     //TCHAR是unicode编码字符wchar_t
 74     /***********  string -> TCHAR* *********/
 75     //使用MultiByteToWideChar()函数
 76     
 77     /***********  TCHAR* ->string *********/
 78     //使用 WideCharToMultiByte()函数
 79 
 80     /**************** string 和char*转int ******************/
 81     //int atoi(const char *nptr);  
 82     //long atol(const char *nptr);  
 83     //long long atoll(const char *nptr);  
 84     //long long atoq(const char *nptr); 
 85 
 86     /*******************int转char*和string************************/
 87     //使用itoa();itoa(i,str,10);
 88 
 89     /*******************  wstring转Csting     *****************/
 90     //wstring wstr = L"this a wstring！你好啊";
 91     //CString cstr4 = _T("");
 92     //cstr4 = wstr.c_str();
 93     //cout << cstr4 << endl;
 94 
 95     /*******************  Csting ->wstring  *****************/
 96     //CString cstr5 = _T("this a cstring5!");
 97     //wstring wstr5 = L"";
 98     //wstr5 = cstr5.AllocSysString();
 99     //wcout << wstr5 << endl;
100     
101     /********* Cstring转char* *************/
102     //CString cstr6 = _T("this cstring6!");
103     //char* pch6 = "";
104     //pch6 = cstr6.GetBuffer();
105     //cout << pch6 << endl;
106     //cstr6.ReleaseBuffer();
107 
108     /************ char *转Cstring **********/
109     //char pch[20] = "this a char* !";
110     //CString str7 = _T("");
111     //str7.Format("%s",pch);
112     //cout << str7 << endl;
113 
114     /*********** TCHAR -> char ************/
115     //TCHAR *pTch = _T("this a TCHAR");
116     //int nLength = 2 * strlen(pTch);
117     //char* pCh = new char[nLength + 1];
118     //memset(pCh,0, nLength + 1);
119     //strcpy(pCh, pTch);
120     //cout << pCh << endl;
121     
122     /*********** char转tchar ************/
123     
124     system("pause");
125     return 0;
126 }
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