数字转string,这些都可以
std::to_string(int)
std::to_string(long)
std::to_string(long long)
std::to_string(float)
std::to_string(double)
std::to_string(long double)
头文件:string.h
#include<bits/stdc++.h>
using namespace std;
int main()
{
int num=123;
string str=to_string(num);
cout<<str<<endl;
return 0;
}
运行结果:
string转数字
头文件:cstdlib
std::stoi
std::stol
std::stoll
#include<bits/stdc++.h>
using namespace std;
int main()
{
int num=0;
string str="123";
num=stoi(str);
cout<<num<<endl;
return 0;
}
运行结果: