KỸ THUẬT LẬP TRÌNH HỆ CƠ ĐIỆN TỬ
Programming for Mechatronic Systems
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TRƯỜNG ĐẠI HỌC BÁCH KHOA HÀ NỘI
Giảng viên: TS. Nguyễn Thành Hùng
Đơn vị: Bộ môn Cơ điện tử, Viện Cơ khí
Hà Nội, 2020
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Chapter I. Basics and data management of C++
❖1. Creation of C++ programs
❖2. Basic data types, variables and constants
❖3. Basic operations and expressions
❖4. Control program structures
❖5. Exception handling
❖6. Pointers, references and dynamic memory
management
❖7. Arrays and strings
❖8. User-defined data types
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1. Creation of C++ programs
❖Some important rules
▪The basic elements of the program: the characters of the 7 bit
ASCII code table
▪Character and text constants, as well as remarks may contain
characters of any coding
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❖Some important rules
▪C++ compiler differentiates small and capital letters in the words
(names) used in the program.
▪Certain (English) words cannot be used as own names since
these are keywords of the compiler.
▪In case of creating own names please note that they have to start
with a letter (or underscore sign), and should contain letters,
numbers or underscore signs in their other positions.
1. Creation of C++ programs
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❖The first C++ program in two versions
// Circle1.cpp
#include "cstdio"
#include "cmath"
using namespace std;
int main()
{
const double pi = 3.14159265359;
double radius, area, perimeter;
// Reading radius
printf("Radius = ");
scanf("%lf", &radius);
// Calculations
perimeter = 2 * radius*pi;
area = pow(radius, 2)*pi;
printf("Perimeter: %7.3f\n",
perimeter);
printf("Area: %7.3f\n", area);
// Waiting for pressing Enter
getchar();
getchar();
return 0;
}
// Circle2.cpp
#include "iostream"
#include "cmath"
using namespace std;
int main()
{
const double pi = 3.14159265359;
// Reading radius
double radius;
cout << "Radius = ";
cin >> radius;
// Calculations
double perimeter = 2 * radius*pi;
double area = pow(radius, 2)*pi;
cout << "Perimeter: " << perimeter <<
endl;
cout << "Area: " << area << endl;
// Waiting for pressing Enter
cin.get();
cin.get();
return 0;
}
C C++
1. Creation of C++ programs