【c++】string與char的轉化

1.string轉char

     string pp = "dagah";
     char p[8];
     int i;
     for( i=0;i<pp.length();i++)
         p[i] = pp[i];
     p[i] = '\0';
     printf("%s\n",p);
     cout<<p;

2.char*轉string

string s;
char *p = "hello";//直接賦值
s = p;

3.string轉char*

string str = "hello";
const char* p = str.data();