char*,const char*和string的相互轉換

1. string轉const char*

string s = "abc";

const char* c_s = s.c_str();

2. const char*轉string

直接賦值即可

const char* c_s = "abc";

string s(c_s);

3. string轉char*

string s = "abc";

char* c;

const int len = s.length();

c = new char[len+1];

strcpy(c,s.c_str());

4. char*轉string

char* c = "abc";

string s(c);

5. const char*轉char*

const char* cpc = "abc";

char* pc = new char[100];//足夠長

strcpy(pc,cpc);

6. char*轉const char*

直接賦值即可

char* pc = "abc";

const char* cpc = pc;

轉自：http://blog.sina.com.cn/s/blog_5436b2f40100pjzz.html