WEBVTT

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Komputerlarning yaxshi jihatlaridan biri bu buyruqlarni qayta bajarishi.

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Inson sifatida, agar siz bir xil narsani ko‘p marta qilishingiz kerak bo‘lsa, 
haqiqatda zerikib ketasiz.

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Ammo komputer bir xil narsani million yoki hattoki
milliard marta ham qila oladi, 

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va zerikmasdan yaxshi holatda bu narsani oxirigacha yetkazib qo‘ya oladi.

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Shunday qilib, misol uchun, agar men <i>Facebook</i>dagi barchani 

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<i>email</i> jo‘natib tug‘ilgan kuni bilan tabriklashni xohlasam, 

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bu <i>email</i>larni barchaga yozib chiqish uchun menga bir asrdan ko‘p vaqt
ketadi.

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Lekin bir necha qator kod bilan, men <i>Facebook</i>dagi 
barchaga tug‘ilgan  

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kuni bilan tabriklab <i>email</i> yuboradigan
sistema tuza olaman.

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Mana <i>loop</i>lar nima, va nima uchun ular qiymatli

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va ular komputerlar juda yaxshi bajara oladigan jihatidan biri.

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Bu misolda, sizning maqsadingiz qushni cho‘chqaga yetishishi 

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uchun harakatlantirish. Hozir, biz buni juda ham oson bajarish uchun

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"<i>repeat</i>" bo‘limidan foydalana olish imkoniyatiga egamiz. Yoki siz buni 

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har safar qushni cho‘chqaga nisbatan bir qadam oldinga chiqarish maqsadida 

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komputerga besh marta "<i>move forward</i>" buyug‘ini berish orqali ham bajarishingiz mumkin.

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Yoki siz komputerga shunchaki bir marta oldinga harakatlanishini ayta olasiz, 

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va keyin unga bu jarayonni 5 marta qaytarishni aytishingiz mumkin
va u xuddi shunday qiladi.

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Shunday qilib, buni qilish uchun siz "<i>move forward</i>" buyrug‘ini 
olib keling, 

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va keyin uni "<i>repeat</i>" bo‘lim ichiga qo‘ying.

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Va siz uning ustiga bosa olasiz va unga qancha qadam oldinlashini xohlashingizni

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aytish uchun bo‘limni necha marta qaytarishini ayting.
Endi yana bir narsa bu 

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siz <i>repaat </i> bo‘limi ichidagidek 
ko‘p buyruqlarni qo‘ya olasiz.

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Demak, bu misolda siz unga besh marta bajarilishi kerak bo‘lgan 

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oldinga harakatlanishni va chapga burilishni aytayapsiz.
Juda yaxshi ish, rohatlaning:-)

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