C++ 入門指南 V2.00 - 單元 3 範例及練習程式碼

demo.cpp

// 引入標準程式庫中相關的輸入、輸出程式
#include <iostream>
// 引入標準程式庫中相關的字串程式
#include <string>

// std 為標準程式庫的命名空間 
using namespace std;
 
int main(void) {
   // 下面建立名稱為 m ， string 型態的物件
   // 小括弧為 string 的建構子
   // 雙引號為字串字面常數
   string m("There is no spoon.");

   // cout 用來輸出的物件
   // endl 為新行符號 '\n'     
   cout << endl;
   cout << m << endl;    
   cout << endl << endl;
    
   return 0;
}
 
/* 檔名: demo.cpp 
   作者: Kaiching Chang 
   時間: 2014-5 */

exercise0301.cpp

#include <iostream>
 
using namespace std;
 
int main(void) {
   short a = 1;
   int b = 2;
   long c = 3;
     
   cout << endl;
   cout << "a: " << a << endl;
   cout << "b: " << b << endl;
   cout << "c: " << c << endl;
   cout << endl << endl;
    
   return 0;
}
 
/* 檔名: exercise0301.cpp 
   作者: Kaiching Chang 
   時間: 2014-5 */

exercise0302.cpp

#include <iostream>
 
using namespace std;
 
int main(void) {
   float a = 0.1;
   double b = 0.2;
     
   cout << endl;
   cout << "a: " << a << endl;
   cout << "b: " << b << endl;
   cout << endl << endl;
    
   return 0;
}
 
/* 檔名: exercise0302.cpp 
   作者: Kaiching Chang 
   時間: 2014-5 */

exercise0303.cpp

#include <iostream>
 
using namespace std;
 
int main(void) {
   char a = 'a';
     
   cout << endl;
   cout << "a + 1: " << a + 1 << endl;
   cout << "a + 2: " << a + 2 << endl;
   cout << endl << endl;
    
   return 0;
}
 
/* 檔名: exercise0303.cpp 
   作者: Kaiching Chang 
   時間: 2014-5 */

exercise0304.cpp

#include <iostream>
 
using namespace std;
 
int main(void) {
   bool a = true;
     
   cout << endl;
   cout << "a: " << a << endl;
   cout << "!a: " << !a << endl;
   cout << endl << endl;
    
   return 0;
}
 
/* 檔名: exercise0304.cpp 
   作者: Kaiching Chang 
   時間: 2014-5 */

exercise0305.cpp

#include <iostream>
 
using namespace std;
 
int main(void) {
   char a = '*';
     
   cout << endl;
   cout << a << endl;
   cout << a << a << endl;
   cout << a << a << a << endl;
   cout << a << a << a << a << endl;
   cout << a << a << a << a << a << endl;
   cout << endl << endl;
    
   return 0;
}
 
/* 檔名: exercise0305.cpp 
   作者: Kaiching Chang 
   時間: 2014-5 */

the end