#include <iostream>
using namespace std;

/*
- string& operator=(const char* s);    //char*型別字串 賦值給當前的字串
- string& operator=(const string &s);  //把字串s賦值給當前的字串
- string& operator=(char* c);          //字元賦值給當前的字串
- string& assign(const char* s);       //把字串s賦值給當前的字串
- string& assign(const char* s,int n);  //把字串s的前n個字元賦給當前字串
- string& assign(const string& s);        //把字串s賦值給當前字串
- string& assign(int n,char c);            //用n個字元c賦給當前字串
 
*/

void test01()
{
    string str1;
    str1 = "hello world";
    cout << "str1 = " << str1 << endl;

    string str2;
    str2 = str1;
    cout << "str2 = " << str2 << endl;

    string str3;
    str3 = 'a';
    cout << "str3 = " << str3 << endl;

    
 
string str4;
    str4.assign("hello C++");
    cout << "str4 = " << str4 << endl;

    string str5;
    str5.assign("hello C++",5);
    cout << "str5 = " << str5 << endl;

    string str6;
    str6.assign(str5);
    cout << "str6 = " << str6 << endl;

    
 
string str7;
    str7.assign(10,'b');
    cout << "str7 = " << str7 << endl;
}

int main()
{
    test01();

    system("pause");
    return 0;
}