进程 中的 int find(string& str,int p

str1.find(str2);

#include<iostream>
using namespace std;
int main()
{
string str= "java is the best programming language";
cout <<  str<<'\n';
cout <<" Position of the programming word is :";
cout<< str.find("programming");
return 0; 
} 

#include<iostream>
using namespace std;
int main()
{
string str= "Mango is my favorite fruit";
cout <<  str<<'\n';
cout<< " position of fruit is :";
cout<< str.find("fruit",12);
return 0; 
} 

#include<iostream>
using  namespace std;
int main()
{
string str = "learnfk";
cout << "String contains :" << str;
cout<< "position of p is :" << str.find('p');
return 0;
}