C++ char*，const char*，string的相互转换代码实例

1.string转const char*

string s ="abc";

constchar* c_s = s.c_str();

2.const char*转string

直接赋值即可

constchar* c_s ="abc";

string s(c_s);

3.string转char*

string s ="abc";

char* c;

constint len = s.length();

c =newchar[len+1];

strcpy(c,s.c_str());

4.char*转string

char* c ="abc";

string s(c);

5.const char*转char*

constchar* cpc ="abc";

char* pc =newchar[100];//足够长

strcpy(pc,c