C++学习记录_1

男娘i 2022-05-18 09:19 266阅读 0赞

//carrots.cpp
    #include <iostream>
    using namespace std;
    
    int main()
    {
    	int carrots;
    	carrots = 25;
    
    	cout << "I have " << carrots << "carrots.\n";
    
    	carrots--;
    	cout << "Crunch, crunch.Now I have " << carrots << " carrots." <<endl;
    
    	return 0;
    }

//convert.cpp
    #include <iostream>
    using namespace std;
    
    int stonetolb(int);
    
    int main()
    {
    	int stone;
    	cout << "Enter the weight in stone:";
    	cin >> stone;
    	int pounds = stonetolb(stone);
    	cout << stone
    	     << " stone = "
    	     << pounds
    	     << " pounds."
    	     << endl;
    
    	return 0;
    }
    
    int stonetolb(int sts)
    {
    	return 14 * sts;
    }

//getinfo.cpp
    #include <iostream>
    using namespace std;
    
    int main()
    {
    	int carrots;
    	cout << "How many carrots do you have?" << endl;
    	cin >> carrots;
    	cout << "Here are two more.";
    	carrots += 2;
    	cout << "Now you have " << carrots << " carrots." << endl;
    
    	return 0;
    }

//ourfunc.cpp
    #include <iostream>
    using namespace std;
    
    void simon(int);
    
    int main()
    {
    	simon(3);
    	cout << "Pick an integer:";
    	int count;
    	cin >> count;
    	simon(count);
    	cout << "Done!" << endl;
    	
    	return 0;
    }
    
    void simon(int n)
    {
    	cout << "Simon says touch your toes "
    	     << n
    	     << " times."
    	     << endl;
    }

//sqrt.cpp
    #include <iostream>
    #include <cmath>
    using namespace std;
    
    int main()
    {
    	double area;
    	cout << "Enter the floor area, in square feet, of your home:";
    	cin >> area;
    	double side;
    	side = sqrt(area);
    	cout << "That's the equivalent of a square "
    	     << side
    	     << " feet to the side."
    	     << endl
    	     << "How fascinating!"
    	     << endl;
    
    	return 0;
    }

//limits.cpp
    #include<iostream>
    #include<climits>
    using namespace std;
    
    int main()
    {
    	int n_int = INT_MAX;
    	short n_short = SHRT_MAX;
    	long n_long = LONG_MAX;
    	long long n_llong = LLONG_MAX;
    
    	cout << "int is " << sizeof(int) << " bytes." << endl;
    	cout << "short is " << sizeof(short) << " byres." << endl;
    	cout << "long is " << sizeof(long) << " bytes." << endl;
    	cout << "long long is " << sizeof(long long) << " bytes."
    	     << endl << endl;
    
    	cout << "Maximum values:" << endl
    	     << "int: " << n_int << endl
    	     << "short: " << n_short << endl
    	     << "long: " << n_long << endl
    	     << "long long: " << n_llong << endl
    	     << endl;
    
    	cout << "Minimum int values = " << INT_MIN << endl
    	     << "Bits per bytes = " << CHAR_BIT << endl;
    
    	return 0;
    }