20140304_KUAS_VisualC++_Exam02

/************************************/
/** 20140304 Exam 02               **/
/** Maker  : Yan                   **/
/** E-Mail : [email protected] **/
/** Date   : 2014/03/04 pm.01:30   **/
/************************************/

//一樣先引入標頭檔案
#include <stdio.h>
#include <stdlib.h>

//方式一: 使用if .. else if ..
void method_1()
{
    /*先行定義變數
      number_1 = 第一運算數
      number_2 = 第二運算數
      select = 選擇運算子  */
    int number_1 = 0, number_2 = 0, select = 0;

    //輸入第一運算數
    printf("Input the first number: ");
    scanf("%d", &number_1);

    //輸入第二運算數
    printf("Input the second number: ");
    scanf("%d", &number_2);

    //輸入選擇運算子, 其規定為[1, 2, 3, 4] is [+, -, *, /]
    printf("// Select your action  ");
    printf("[1, 2, 3, 4] is [+, -, *, /] //");
    printf("\nYour choose is: ");
    scanf("%d", &select);

    /*開始進行if 條件運算式, 其使用格式為
    --------------------------------------
      if([條件式])
      {
           [敘述式]
      }
      else if([條件式])
      {
           [敘述式]
      }
      else
      {
           [敘述式]
      }
    --------------------------------------*/
    if(select == 1)
    {
        printf("Answer(+) is: %d\n", number_1 + number_2);
        return;
    }
    else if(select == 2)
    {
        printf("Answer(-) is: %d\n", number_1 - number_2);
        return;
    }
    else if(select == 3)
    {
        printf("Answer(*) is: %d\n", number_1 * number_2);
        return;
    }
    else if(select == 4)
    {
        printf("Answer(/) is: %d .. %d\n", number_1 / number_2, number_1 % number_2);
        return;
    }
}

//方式二: 使用switch .. case ..
void method_2()
{
    int number_1 = 0, number_2 = 0, select = 0;

    printf("Input the first number: ");
    scanf("%d", &number_1);

    printf("Input the second number: ");
    scanf("%d", &number_2);

    printf("// Select your action  ");
    printf("[1, 2, 3, 4] is [+, -, *, /] //");
    printf("\nYour choose is: ");
    scanf("%d", &select);

    /*開始進行switch 條件運算式, 其使用格式為
    ------------------------
      switch([條件式])
      {
           case [值]:
               [運算式]
      }
    ------------------------*/
    switch(select)
    {
        case 1:
            printf("Answer(+) is: %d\n", number_1 + number_2);
            break;
        case 2:
            printf("Answer(-) is: %d\n", number_1 - number_2);
            break;
        case 3:
            printf("Answer(*) is: %d\n", number_1 * number_2);
            break;
        case 4:
            printf("Answer(/) is: %d .. %d\n", number_1 / number_2, number_1 % number_2);
            break;
    }
}

void main()
{
    //method_1();
    //method_2();
    system("pause");
}