[C++/CPP] 17.05 string 대입, 교환, 덧붙이기, 삽입

#include<iostream>
#include<string>

using namespace std;

int main()
{
    
    {   
        string str1("one");
        string str2;

        str2 = str1;
        str2 = "two";
        str2.assign("two").append(" ").append("three").append(" ").append("four");

        cout << str2 << endl;
    }
    
    {
        string str1("one");
        string str2("two");

        cout << str1 << " " << str2 << endl;

        std::swap(str1, str2);
        cout << str1 << " " << str2 << endl;

        str1.swap(str2);
        cout << str1 << " " << str2 << endl;
    }

    {
        string str1("one");
        string str2("two");

        str1.append("three");
        str1.push_back('A');
        str1 += "three";

        cout << str1 << " " << str2 << endl;

        str1 = str2 + "four";

        cout << str1 << " " << str2 << endl;

    }

    {
        string str("aaaa");

        str.insert(2,"bbb");

        cout << str << endl;
    }


    return 0;
}