مرجع سريع لـ Python

number = 5   # عدد صحيح (int)
real = -3.4  # عدد عشري (float)
name = "Ada" # سلسلة نصية (str)
surname = "Lovelace" # سلسلة نصية (str)
boolean1 = True # قيمة منطقية (bool)
boolean2 = False # قيمة منطقية (bool)

print(number, real, name, surname, boolean1, boolean2)
print(type(number), type(real), type(name), type(boolean1))

str1 = "I am a string"
str2 = 'I am also a string value'

print("the char at 0 is", str1[0])
print("the char at", len(str1) - 1, "is", str1[len(str1) - 1])

for ch in "Ada":
    print(ch)

str3 = """I am the first line,
   I am the second line,
I am the third line
"""
print(str3)

a = 13
b = 5
print("a =", a)
print("b =", b)

print("a + b =", a + b)
print("a - b =", a - b)
print("a * b =", a * b)
print("a / b =", a / b)
# القسمة مع التقريب إلى أسفل
print("a//b =", a // b)
# باقي القسمة
print("a mod b =", a % b)
# الأس
print("b*b =", b ** 2)
print("b*b*b =", b ** 3)
print("sqrt(b)=", b ** 0.5)

# القائمة: مرتّبة وقابلة للتعديل، بين قوسين مربعين
mylist = [10, 8, 6, 4, 2]
print(mylist)

# الصف: مرتّب لكنه غير قابل للتعديل، بين قوسين دائريين
mytuple = (1, 4, 5, 'Jood')
print(mytuple)

# القاموس: أزواج مفتاح وقيمة، بين قوسين معقوفين
mydictionary = {
    'name': "Joud",
    'surname': 'Alshehri',
    'age': 23,
}
print(mydictionary)
print(mydictionary['surname'])

mylist = [10, 8, 6, 4, 2]
mytuple = (1, 4, 5, 'Jood')
mydictionary = {'name': "Joud", 'surname': 'Alshehri', 'age': 23}

list_of_other_objects = [mylist, mytuple, 3, "Ada", mydictionary]
for item in list_of_other_objects:
    print(item)

print()
print(len("Asja Karaindrou"))
print(len([1, 2, 3, 4]))
print(len(mydictionary))

i = 10
while i > 0:
    print(i, end=" ")
    i = i - 1
print()

for i in range(-5, 6):   # من -5 إلى 5
    print(i, end=" ")
print()

for i in range(0, 23, 4):  # 0, 4, 8, 12, 16, 20
    print(i, end=" ")
print()

mydictionary = {'name': "Jood", 'surname': 'Alshehri', 'age': 23}
for key in mydictionary:
    print("key is", key, "and its value is", mydictionary[key])

for a in range(4, 7):
    if a < 5:
        print(a, "is less than 5")
    elif a == 5:
        print(a, "is equal to 5")
    else:
        print(a, "is greater than 5")

i, j = -3, 4
if i < 0 and j > 0:
    print(i, "is negative AND", j, "is positive")
if i == 2 or j == 4:
    print("i OR j matched")
if not (i == 2):
    print(i, "is NOT equal to 2")
print(4 != 3, 2 <= 5, 5 >= 3)

A = [
    [1, 2, 3],
    [-2, -4, -6],
    [3, 6, 9],
]
for row in A:
    print(row)
print("العنصر A[0][1] =", A[0][1])

list1 = [1, 2, 3]
list2 = [4, 5, 6]
print(list1 + list2)

numbers = [0, 1, 2]
numbers.append(3)
numbers = numbers + [4]
print(numbers)

def summation_of_integers(n):
    summation = 0
    for integer in range(n + 1):
        summation += integer
    return summation

print(summation_of_integers(10))
print(summation_of_integers(20))

from random import randrange
print(randrange(10), "is picked randomly between 0 and 9")
print(randrange(-9, 10), "is picked randomly between -9 and 9")
print(randrange(0, 20, 3), "is picked randomly from [0,3,6,9,12,15,18]")