#include < string >
string与char*的相互转换:
(1) char * 转string
char * cp = “hello world”;
string str = cp;//操作符重载
string str1( cp); //构造函数
(2)string 转char *
string str = “hello world”;
char *cp = str.c_str();
string与int的相互转换:
(1)int 转string
string str = to_string(123);
(2)string 转int
string str = “123”;
int a = stoi(str);