/*---------------------
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*/
#include
#include
#include
using namespace std;
int main(int argc, char *argv[])
{
string str = "hello world!";
char *buff;
const char * cstr = str.data();
const char *cstr2 = str.c_str();
//string::nposÊÇ»úÆ÷ÉÏ×î´óµÄÕýÕûÊý£¬³£ÓÃÀ´±íʾstringµÄ½áÊøλÖÃ
size_t length = str.copy(buff,string::npos,0);
buff[length] = '\0';
for(int i =0; str[i]!='\0'; i++)
cout << str[i];
cout <<"data():" << cstr << endl;
cout << "c_str():" << cstr2 << endl;
cout << "copy():" << buff << endl;
str = "chinese";
cout <<"data():" << cstr << endl;
cout << "c_str():" << cstr2 << endl;
cout << "copy():" << buff << endl;
return 0;
}