int转string的多种方式

int a = 10;
char *intStr = itoa(a);
string str = string(intStr);

int a = 10;
stringstream ss;
ss << a;
string str = ss.str();

3.C++ 11(并不是编译器都支持)

#include <string> 
 
std::string s = std::to_string(42);

4.C++ 98

#include <sstream>
 
#define SSTR( x ) static_cast< std::ostringstream & >( \
        ( std::ostringstream() << std::dec << x ) ).str()

#include <boost/lexical_cast.hpp>
 
int num = 4;
std::string str = boost::lexical_cast<std::string>(num);

原博主：https://blog.youkuaiyun.com/zmdsjtu/article/details/80360398

• string转int

std::string str = "123";
int n = atoi(str.c_str());