examples.py - master - redcat1/uts33_oop

examples.py
191 строка4 KB
Alexander Alakhverdyants
уточнение
14 сен 2024, 12:32
14 сен 2024, 12:32dbaac58
# Просты числа
x = 7
y = 5

print('-' * 20)
print('Numerical')
print(f'x + y = {x + y}')
print(f'x - y = {x - y}')
print(f'x * y = {x * y}')
print(f'x / y = {x / y}')
print(f'x % y = {x % y}')


# Логический тип
x = True
y = False

print('-' * 20)
print('Boolean')
print(f'x and y = {x and y}')
print(f'x or y = {x or y}')
print(f'not x = {not x}')


# Последовательности
x = [1, 2, 3]
y = [4, 5, 6, 7]

print('-' * 20)
print('List')
print(f'2 in x = {2 in x}')
print(f'2 not x = {2 not in x}')
print(f'4 not x = {4 not in x}')
print(f'x + y = {x + y}')
print(f'x * 3 = {x * 3}')
print(f'x[2] = {x[2]}')
print(f'y[1:3] = {x[1:3]}')
print(f'len(y) = {len(y)}')


# Изменяемость списков
print(f'x = {x}')
x.extend(y)
print(f'x.extend(y) = {x}')
x.append(8)
x.insert(4, 9)
x.pop(2)
print(f'x = {x}')


z = (1, 2, 3)
print('-' * 20)
print('Tuple')
print(f'z = {z}')   
print(f'len(z) = {len(z)}')
print(f'z[0] = {z[0]}')
print(f'z[-1] = {z[-1]}')
print(f'z[1:3] = {z[1:3]}')
# z[1] = 7


s = 'Hello world!'
print('-' * 20)
print('String')
print(f's = {s}')
print(f'len(s) = {len(s)}')
print(f's[0] = {s[0]}')
print(f's[1] = {s[1]}')
print(f's[-1] = {s[-1]}')
print(f's[1:3] = {s[1:3]}')
print(f's*3 = {s*3}')


d = {'Ivanov': 2000, 'Petrov': 2001, 'Sidorov': 2002}
print('-' * 20)
print('Dictionary')
print(f'd = {d}')
print(f"len(d) = {len(d)}")
print(f"d['Ivanov'] = {d['Ivanov']}")
print(f"d['Sidorov'] = {d['Sidorov']}")
print(f"pop(a) = {d.pop('Ivanov')}")
print(f"b in d = {'Petrov' in d}")
print(f"e in d = {'Kuznetsov' in d}")
print(f"b not in d = {'Petrov' not in d}")
print(f"e not in d = {'Kuznetsov' not in d}")
d['Kuznetsov'] = 1999
print(f'd = {d}')
d['Petrov'] = 2002
print(f'd = {d}')


print('-' * 20)
print('Conditions')
x = 42
if x < 0:
    x = 0
    print('Negative changed to zero')
elif x == 0:
    print('Zero')
elif x == 1:
    print('Single')
else:
    print('More')

x = 0
if x < 0:
    x = 0
    print('Negative changed to zero')
elif x == 0:
    print('Zero')
elif x == 1:
    print('Single')
else:
    print('More')

x = -5
if x < 0:
    x = 0
    print('Negative changed to zero')
elif x == 0:
    print('Zero')
elif x == 1:
    print('Single')
else:
    print('More')

x = 1
if x < 0:
    x = 0
    print('Negative changed to zero')
elif x == 0:
    print('Zero')
elif x == 1:
    print('Single')
else:
    print('More')


print('-' * 20)
print('For Loop')
l = [42, 0, -5, 1]
for x in l:
    if x < 0:
        x = 0
        print('Negative changed to zero')
    elif x == 0:
        print('Zero')
    elif x == 1:
        print('Single')
    else:
        print('More')


print('-' * 20)
print('While Loop')
l = [42, 0, -5, 1]
while len(l) > 0:
    x = l.pop(0)
    if x < 0:
        x = 0
        print('Negative changed to zero')
    elif x == 0:
        print('Zero')
    elif x == 1:
        print('Single')
    else:
        print('More')


print('-' * 20)
print('Functions')

def square_function(x, a = 1, b = 0, c = 0):
    """Данная функция square_function вычисляет значение квадратной функции для заданного значения x. 
    Функция принимает на вход четыре аргумента: x - значение, для которого вычисляется функция; 
    a, b, c - коэффициенты перед x^2, x и свободным членом соответственно. 
    Если какой-либо из коэффициентов не задан, он по умолчанию равен 1, 0 и 0 соответственно. 
    Функция возвращает значение квадратной функции в точке x."""
    summ = a * x * x
    summ += b * x
    summ += c
    return summ

a = square_function(1, 2)
print(f'a = {a}')
print(f'2*2 = {square_function(2)}')
print(f'3*2*2 = {square_function(2, 3)}')
print(f'3*2*2 + 4*2 = {square_function(2, 3, 4)}')
print(f'3*2*2 + 4*2 + 5 = {square_function(2, 3, 4, 5)}')
print(f'3*2*2 + 4*2 + 5 = {square_function(x=2, c=5, b=4, a=3)}')
print(square_function.__doc__)