C 語言練習題：玩玩 printf

練習一：請寫出C語言程式碼的骨架

Exercise 1: What is the skeleton of a C program?

練習一參考解法：
Exercise 1 solution:

#include <stdio.h>
#include <stdlib.h>
int main()
{
    /*
    *
    * Here is your code.
    */
    return 0;
}

練習二：寫一個程式可以輸出”開始學C語言囉！”
Exercise 2: Write a program to print the message: “Start learning C language!”

練習二參考解法：
Exercise 2 solution:

#include <stdio.h>
#include <stdlib.h>
int main()
{
    printf("開始學習C語言囉！");
    printf("Start learning C language!");
    return 0;
}

練習三：(換行)請用換行符號 “\n” 輸出下圖上的文字
Exercise 3: Using new line character “\n” to display this picture message.

練習三參考解法：
Exercise 3 solution:

#include <stdio.h>
#include <stdlib.h>
int main()
{
    printf("Hi!\n\n");
    printf("Let's get started!\n");
    printf("Learning\n C language\n             will be fun.");
    return 0;
}

練習四：寫一個可以輸出菱形星星的程式
Exercise 4: Write a C program to show a diamond.

練習四參考解法：

Exercise 4 solution:

#include <stdio.h>
#include <stdlib.h>
int main()
{
    printf("  *\n");
    printf(" ***\n");
    printf("*****\n");
    printf(" ***\n");
    printf("  *\n");
    return 0;
}

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