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Python dasturlash maktabi
⭕️ 3-bo'lim "Nazorat tarkibi" ————————————— Ⓜ️ "if" va "elif" operatorlari Biror shart bajarish uchun if operatorlaridan foydalanishingiz mumkin va shart operatori deyarli barcha dasturlarda ishtirok etadi. Shart operatori 3 qismdan iborat (if, elif, else).…
Ⓜ️ For sikli

For sikli berilgan ketma-ketliklar masalan ro'yxatlar yoki satrlar bo'yicha takrorlash uchun ishlatiladi.

Quyidagi kod ro'yxatdagi har bir elementni chiqaradi va oxirida undov belgisini qo'shadi:

words = ["hello", "world", "spam", "eggs"]
for word in words:
print(word + "!")

hello!
world!
spam!
eggs!


Yuqoridagi kodda so'z o'zgaruvchisi siklning har bir takrorlanishida ro'yxatning tegishli elementini aks ettiradi(undov belgisi nazarda tutilyabdi).
1-takrorlash paytida so'z "hello" ga teng, 2-takrorlash paytida esa "world" ga teng bo'ladi va hokazo.


For sikli satrlar ustida takrorlash uchun ishlatilishi mumkin.
string = "Men dasturlashni muntazam o'rganaman"
soni = 0
for i in string:
if (i == 'a'):
soni += 1
print(soni)

7


Yuqoridagi kod hisoblash o'zgaruvchisini belgilaydi, satr ustida takrorlanadi va undagi 'a' harflar sonini hisoblab chiqadi. Har bir takrorlash paytida i o'zgaruvchisi satrning joriy harfini aks ettiradi.
Sanoq o'zgaruvchisi har safar 'a' harfi topilganda qo'shiladi, shuning uchun sikl oxirida u satrdagi 'a' harflari sonini bildiradi.
While sikli singari, break va continue iboralaridan for siklida ham foydalanish mumkin.


Takrorlash soni aniqlanganda for siklidan foydalaniladi.Masalan oziq-ovqat do'koni dasturida:
Quyidagi kodda sikl 4 marta takrorlanadi.

mevalar = ["olma", "anor", "gilos", "o'rik"]
for i in mevalar:
print(i)



Takrorlash soni noaniq bo'lsa while siklidan foydalanish tavsiya etiladi.
Masalan 2 ta raqamni qo'shuvchi dasturida:
var = 0
while True:
raqam = int(input("Son kiriting: "))
if var == 0:
var = raqam
else:
print("Natija:", var + raqam)


Son kiriting: 5
Son kiriting: 3
Natija: 8
Son kiriting:


For va while sikllari bir xil natijalarga erishish uchun ishlatilishi mumkin, ammo for loopi qisqa sintaksisga egali uchun aksariyat hollarda qo'llaniladi.

@pythonuz



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Ⓜ️ For sikli

For sikli berilgan ketma-ketliklar masalan ro'yxatlar yoki satrlar bo'yicha takrorlash uchun ishlatiladi.

Quyidagi kod ro'yxatdagi har bir elementni chiqaradi va oxirida undov belgisini qo'shadi:

words = ["hello", "world", "spam", "eggs"]
for word in words:
print(word + "!")

hello!
world!
spam!
eggs!


Yuqoridagi kodda so'z o'zgaruvchisi siklning har bir takrorlanishida ro'yxatning tegishli elementini aks ettiradi(undov belgisi nazarda tutilyabdi).
1-takrorlash paytida so'z "hello" ga teng, 2-takrorlash paytida esa "world" ga teng bo'ladi va hokazo.


For sikli satrlar ustida takrorlash uchun ishlatilishi mumkin.
string = "Men dasturlashni muntazam o'rganaman"
soni = 0
for i in string:
if (i == 'a'):
soni += 1
print(soni)

7


Yuqoridagi kod hisoblash o'zgaruvchisini belgilaydi, satr ustida takrorlanadi va undagi 'a' harflar sonini hisoblab chiqadi. Har bir takrorlash paytida i o'zgaruvchisi satrning joriy harfini aks ettiradi.
Sanoq o'zgaruvchisi har safar 'a' harfi topilganda qo'shiladi, shuning uchun sikl oxirida u satrdagi 'a' harflari sonini bildiradi.
While sikli singari, break va continue iboralaridan for siklida ham foydalanish mumkin.


Takrorlash soni aniqlanganda for siklidan foydalaniladi.Masalan oziq-ovqat do'koni dasturida:
Quyidagi kodda sikl 4 marta takrorlanadi.

mevalar = ["olma", "anor", "gilos", "o'rik"]
for i in mevalar:
print(i)



Takrorlash soni noaniq bo'lsa while siklidan foydalanish tavsiya etiladi.
Masalan 2 ta raqamni qo'shuvchi dasturida:
var = 0
while True:
raqam = int(input("Son kiriting: "))
if var == 0:
var = raqam
else:
print("Natija:", var + raqam)


Son kiriting: 5
Son kiriting: 3
Natija: 8
Son kiriting:


For va while sikllari bir xil natijalarga erishish uchun ishlatilishi mumkin, ammo for loopi qisqa sintaksisga egali uchun aksariyat hollarda qo'llaniladi.

@pythonuz

BY Python dasturlash maktabi


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Python dasturlash maktabi Telegram | DID YOU KNOW?

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Export WhatsApp stickers to Telegram on Android

From the Files app, scroll down to Internal storage, and tap on WhatsApp. Once you’re there, go to Media and then WhatsApp Stickers. Don’t be surprised if you find a large number of files in that folder—it holds your personal collection of stickers and every one you’ve ever received. Even the bad ones.Tap the three dots in the top right corner of your screen to Select all. If you want to trim the fat and grab only the best of the best, this is the perfect time to do so: choose the ones you want to export by long-pressing one file to activate selection mode, and then tapping on the rest. Once you’re done, hit the Share button (that “less than”-like symbol at the top of your screen). If you have a big collection—more than 500 stickers, for example—it’s possible that nothing will happen when you tap the Share button. Be patient—your phone’s just struggling with a heavy load.On the menu that pops from the bottom of the screen, choose Telegram, and then select the chat named Saved messages. This is a chat only you can see, and it will serve as your sticker bank. Unlike WhatsApp, Telegram doesn’t store your favorite stickers in a quick-access reservoir right beside the typing field, but you’ll be able to snatch them out of your Saved messages chat and forward them to any of your Telegram contacts. This also means you won’t have a quick way to save incoming stickers like you did on WhatsApp, so you’ll have to forward them from one chat to the other.

The messaging service and social-media platform owes creditors roughly $700 million by the end of April, according to people briefed on the company’s plans and loan documents viewed by The Wall Street Journal. At the same time, Telegram Group Inc. must cover rising equipment and bandwidth expenses because of its rapid growth, despite going years without attempting to generate revenue.

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