版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/caimouse/article/details/78833505
在以往的C++中,比较难转换的,要使用std::stringstream,这个使用起来怎么感觉都有点麻烦,还是喜欢使用itoa()的实现,现在C++11带来新的std::to_string(),就更加方便了,如下:
string to_string (int val);
string to_string (long val);
string to_string (long long val);
string to_string (unsigned val);
string to_string (unsigned long val);
string to_string (unsigned long long val);
string to_string (float val);
string to_string (double val);
string to_string (long double val);
例子使用:
// to_string example
#include <iostream> // std::cout
#include <string> // std::string, std::to_string
int main ()
{
std::string pi = "pi is " + std::to_string(3.1415926);
std::string perfect = std::to_string(1+2+4+7+14) + " is a perfect number";
std::cout << pi << '\n';
std::cout << perfect << '\n';
return 0;
}