C++中CString string char* char 之间的字符转换（多种方法）

// CharConvert.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include<iostream>#include<afx.h>#include<string>using namespace std;int _tmain(int argc, _TCHAR* argv[]){	//此方法适用于“多字节” 否则会出现'strcpy' : cannot convert parameter 2 from 'unsigned short *' to 'const char *'	/*CString str("Hello zzu");	cout<<"the CString is "<<str<<endl;	char a[100];	strcpy(a,str);	cout<<"the convert to char * is "<<a<<"(char *)"<<endl;*/	//CString 转换成string	//  CString c_str1("Hello Zhengzhou University");	//string str;	//str=c_str1.GetBuffer(0);	//c_str1.ReleaseBuffer();  //否则就没有释放缓冲区所占的空间	//cout<<str<<endl;	//cout<<"/n"<<c_str1<<endl;	//string 转换成CString	/*string str1("Hello College of Information Engineering");	CString c_str2;	c_str2=str1.c_str(); //c_str()：生成一个const char*指针，指向以空字符终止的数组。	cout<<"the CString is "<<c_str2<<endl;	cout<<"the string is "<<str1<<endl;*/	//string转换成const char*	//方法一：	//string str2("Hello College of Information Engineering");	//const char * str3;  //常数指针	//str3=str2.c_str();	//cout<<"string  is  "<<str2<<endl;	//cout<<"const char is "<<str3<<endl;		//方法二: // /* string str("Hello College of Information Engineering");	//const char * c_str;	//c_str=str.data();	//cout<<"string is  "<<str<<endl;	//cout<<"const char is"<<c_str<<endl;*/				//string 直接转换成char*	///*string s1 = "abcdefg";	//char *data;	//int len = s1.length();	//data = (char *)malloc((len)*sizeof(char));	//s1.copy(data,len,0);	//cout<<len<<endl;	//cout<<data<<endl;*/	      	//string.copy()的用法	  //size_t length;  //  char buffer[8];  // string str("Test string......");  //    // length=str.copy(buffer,7,6);    //从buffer6，往后数7个，相当于[ buffer[6], buffer[6+7] ）  // buffer[length]='/0';            //加上'/0'使得buffer就到buffer[length]为止；   // cout <<"buffer contains: " << buffer <<endl;  //char * 转换成string	//char *到string  /* char * c_str="zzu";	string str(c_str);	cout<<"the c_str "<<c_str<<endl;	cout<<"the string is"<<str<<"and length is "<<str.length()<<endl;*/	//char a[]="asd";	//cout<<strlen(a)<<endl; //为什么显示的是3，不是有一个/0吗	//char * 到CString  	////char * c_str1="zzu";	////CString str; //可以直接转换，因为CString存在重载(在多字节字符集下适用)	////str.Format("%s",c_str1);	////cout<<"the c_str1 is"<<c_str1<<endl;		////cout<<"the CString is"<<str<<endl;	//方法1：使用API：WideCharToMultiByte进行转换（使用过，有效）   //CString str= CString("This is an example!");   //int n = str.GetLength(); //按字符计算，str的长度   //int len = WideCharToMultiByte(CP_ACP,0,str,n,NULL,0,NULL,NULL);//按Byte计算str长度   //char *pChStr = new char[len+1];//按字节为单位   //WideCharToMultiByte(CP_ACP,0,str,n,pChStr,len,NULL,NULL);//宽字节转换为多字节编码   // pChStr[len] = '/0';//不要忽略末尾结束标志   //用完了记得delete []pChStr,防止内存泄露	return 0;}

CString s; int i = 64; s.Format("%d", i)