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Creating Your First Struct
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Using the visual cue at the end of the first chapter, let's create a data type to describe a chemical element:
main.c
1234567struct chemicalElement { char name[3]; int atomicNum; int valency; double mass; };
The mass and atomic number cannot be negative, so it would be more efficient to use the unsigned short int data type.
Now, you can create a chemical element. The code will look like this:
main.c
123456789101112131415#include "stdio.h" struct chemicalElement { char name[3]; int atomicNumber; int valency; double mass; }; int main() { struct chemicalElement silicon = {"Si", 14, 4, 28.08}; return 0; }
Access to struct fields will be discussed in the next chapter. Try to describe the geometric point A with a structure.
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You are creating a structure to represent a point in a 2D space. Your goal is to store and display information about the point, including its name and coordinates.
The structure Point should contain:
- A character array for the point's name — it must contain only one letter (for example, "A" or "B").
To store this single letter and the null terminator
\0, declare the array asname[2]. - Two integer fields representing the
xandycoordinates.
In the main function:
- Create a variable of type Point.
- Initialize it using curly braces {} with the name and coordinate values.
解答
実践的な練習のためにデスクトップに切り替える下記のオプションのいずれかを利用して、現在の場所から続行するフィードバックありがとうございます！
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