Durdiyeva salomatning

14-SON UMUMIY O’RTA TA’LIM MAKTABINING INFORMATIKA FANI O’QITUVCHISI

DURDIYEVA SALOMATNING

9-SINFLARDA “PYTHONDA O’ZGARUVCHILARNI TAVSIFLASH” MAVZUSIDA OCHIQ DARSI

Katta va kichik lotin harflari

A, B, C, ..., X, Y, Z,

a, b, c, ..., x, y, z

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Python dasturlash tilining alifbosi

Arab raqamlari

0, 1, 2, 3, 4, 5, 6, 7, 8, 9

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Maxsus belgilar

Arifmetik amallar +, –, *, /,

qavslar, tinish belgilari

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Xizmatchi so‘zlar

if – shart operatori

for – sikl operatori

print – chiqarish operatori

input – kiritish operatori

class – sinflar

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• O‘zgaruvchi nomida ixtiyoriy harf yoki raqamdan foydalanish mumkin;

• Katta va kichik harflar bir-biridan farqlanadi. son3, Son3, SON3 nomli o‘zgaruvchilar har xil o‘zgaruvchidir.

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O‘zgaruvchilarni e’lon qilish qoidalari:

Misol. print() - chiqarish operatori

• >>> a = 6 a – o’zgaruvchi 6 ga teng
• >>> b = 10 b – o’zgaruvchi 10 ga teng
• >>> c = a + b
• >>> print(c) c – o’zgaruvchini chiqarish
• 16 Natija: 16 ga teng

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Misol. if – shart operatori

• >>> a = 6 a – o’zgaruvchi 6 ga teng
• >>> b = 10 b – o’zgaruvchi 10 ga teng
• >>> if a>b: agar a katta bo’lsa b dan
• >>> print(a) a – o’zgaruvchini chiqarish
• >>> else: aks holda
• >>> print(b) b – o’zgaruvchini chiqarish
• 10 Natija: 10 ga teng

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Misol. input() – kiritish operatori

• >>> a = int(input(‘a = ') a – o’zgaruvchi kiritish
• >>> b = int(input(‘b = ') b – o’zgaruvchi kiritish
• >>> c = a + b
• >>> print(c) c – o’zgaruvchini chiqarish
• Natija:
• a=
• b=

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Misol. for – sikl operatori

• >>> a = 9
• >>> for i in range(1,a,1)
• >>> print(c,’ – ’)
• 1 – 2 – 3 – 4 – 5 – 6 – 7 – 8 – 9

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Uy vazifa

• 1. Uchburchak yuzini toping
• 2. Aylana yuzini toping

S = ?

•  

A = 3

B = 4

C = 5

r = 3

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