testmystring.cpp

C++编成数据结构与程序设计方法 D.S.Malk编著

//Test Program
#include <iostream>
#include "myString.h"

using namespace std;

int main()
{
    newString str1 = "Sunny"; 		//initialize str1 using 
                                    //the assignment operator 
    const newString str2("Warm");	//initialize str2 using the
                                    //conversion constructor
    newString str3; //initialize str3 to null
    newString str4; //initialize str4 to null

    cout << "Line 1: " << str1 << "    " << str2 
         << "  ***" << str3 << "###." << endl;      //Line 1

    if (str1 <= str2)        //compare str1 and str2; Line 2
        cout << "Line 3: " << str1 << " is less "
             << "than " << str2 << endl;            //Line 3
    else                                            //Line 4
        cout << "Line 5: " << str2 << " is less "
             << "than " << str1 << endl;            //Line 5

    cout << "Line 6: Enter a string with a length "
         << "of at least 7: ";                      //Line 6
    cin >> str1;        //input str1;                 Line 7
    cout << endl;                                   //Line 8

    cout << "Line 9: The new value of "
         << "str1 = " << str1 << endl;              //Line 9

    str4 = str3 = "Birth Day";                      //Line 10

    cout << "Line 11: str3 = " << str3 
         << ", str4 = " << str4 << endl;            //Line 11

    str3 = str1;                                    //Line 12
    cout << "Line 13: The new value of str3 = "
         << str3 << endl;                           //Line 13

    str1 = "Bright Sky";                            //Line 14

    str3[1] = str1[5];                              //Line 15
    cout << "Line 16: After replacing the second "
         << "character of str3 = " << str3 << endl; //Line 16

    str3[2] = str2[0];                              //Line 17
    cout << "Line 18: After replacing the third "
         << "character of str3 = " << str3 << endl; //Line 18

    str3[5] = 'g';                                  //Line 19
    cout << "Line 20: After replacing the sixth "
         << "character of str3 = " << str3 << endl; //Line 20

    return 0;
}