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Channel: IMAGINE TV

Создаем на Скретч хоррор игру | Scratch Horror | Мистический лабиринт на Скретч c Хаги Ваги

Создаем на Скретч хоррор игру | Scratch Horror | Мистический лабиринт на Скретч c Хаги Ваги

Channel: Пиксель - школа программирования для детей

Урок_#18. C++. #Указатели. Оператор адреса, оператор разыменования. Размер указателя.

Урок_#18. C++. #Указатели. Оператор адреса, оператор разыменования. Размер указателя.

Channel: IMAGINE TV

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00:00:02

programming Weiss boards yours not us

00:00:04

lesson start speech in this lesson I will show you how to

00:00:06

make scratch cycles and so if you

00:00:09

like such lessons be sure to

00:00:10

subscribe to our channel and like you

00:00:12

know, let's start switching to the

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desktop

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switching and so here I already have

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scratch running, I’ll immediately remind you that

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the screen in scratch is divided into three areas,

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the left area is the area in which

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all your commands are located, which you

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throw in the middle area

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here for this hero, highlighted in a

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light color,

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who will carry them out. in

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this right window here the

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hero himself can be selected here in the

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lower right part and so let's look at

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what cycles you can do scratch what

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is a cycle a cycle

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is a sequence of actions

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that is performed many times and is

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performed as many times as long as it is correct and

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the conditions are good, look at us

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there is a hero, let's

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make our cycle for this hero, but of course, let's

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activate our program by clicking on the

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checkbox, we take events with you when the checkbox is clicked,

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so the first cycle that we will

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consider is an endless loop that

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is repeated, we always take control and

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select repeat always,

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this cycle will repeat always until

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you create the conditions for him to exit

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this cycle,

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see what example can be

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given here, for example, we always take from

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the movement to walk 10 steps and

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take if he touches the edge, then push off,

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our hero will move across the screen, and

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let’s also change his appearance, we will

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immediately change his costume then there he will

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walk and move his feet, click on

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the direction and click here left to right

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now look, when we start our

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program, this cycle will start,

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always repeating an endless loop and our

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hero will start walking around the screen left to

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right like this, of course, you can

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choose a maritim background of some kind

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let's choose a beautiful background, for example,

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this one

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and our hero is running endlessly here

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now here and we want to get out of this

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loop, we need to add

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interruptions for this loop, what could

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be the harm of an interruption if we touch

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our hero's mouse, then let's

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stop our Harry there like this

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do we take from the control if then and

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throw it inside our infinite loop

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then we take from the sensors if it touches the

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mouse pointer

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if the tower touches our hero then we

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must take from the control

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for example

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stop everything, that is, the whole

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program stops they only this algorithm can be

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done so that only this the script

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stopped, that is, we will be

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interrupted by this endless loop,

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you can put other sprite scripts

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besides this one, so let's stop

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just this script, run it, look,

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our hero is running around the screen and it stinks that

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this endless loop,

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if we hover the mouse over it, then we

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will stop here this algorithm

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will trigger the exit from this block of code,

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okay, we have now looked at an

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infinite loop, now let's

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look at another loop,

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loop repeat until the loop exits the

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while condition,

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usually programming o is called

00:03:36

while not yet, so we take from the events

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carnage TV burn and from the control we take

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our new loop

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to repeat until the while loop, that is, our

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hero will repeat all actions until

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some event occurs,

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let's give this code from or the flag

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so that it does not work and what we will

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do, of course, duplicate this block

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and throw

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if we remove it here, basically our cycle will

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always repeat until

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some event occurs drop by drop

00:04:09

does not touch the mouse pointer, that is,

00:04:12

look, we got an analogue of this

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same code, that is, our hero will

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always walk because you are a suit and

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push off from the edge of the screen until it

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touches the mouse pointer,

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what is the difference between this algorithm with a

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repeat until loop and this

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algorithm, the difference is that repeat

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always does not have the ability to

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execute any other commands after it,

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look below, we cannot

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attach anything because from this algorithm you

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can only exit in this way,

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stop there is this script, but in this

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loop, after stopping this loop, we can

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execute the following command,

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for example, from the appearance, take

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say 2 seconds, that is, hello for two

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seconds in this case, we press start,

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our hero will start running until then until

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we touch it with the mouse, look, and

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when we touch it, it will say hello for two

00:05:08

seconds, that is, the main difference between these

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two loops is that in this loop you

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cannot exit it and continue

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executing commands in the same algorithm, you

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can only exit it by stopping the

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whole algorithm about this loop you will

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execute all these commands endlessly

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until some

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event occurs, for example this event, then of

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course after the occurrence of this event the

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execution of our code continues

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here, if we duplicate this code

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again, look at yours below

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then you and I can touch our

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hero twice, look, we launch, we

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touched him, hello and runs again, but

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this part 2 is already running, which we

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duplicated to everyone once again,

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coal hello and our entire code

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stops, that is, the main difference is

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that it does not allow repeating yet

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you need to complete this loop according to the condition and

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continue executing the next commands, and

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in this loop always repeat, you

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can’t do this perfectly well, look, we

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looked at two loops:

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repeat always and repeat until

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some condition occurs, the

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difference is that always repeat

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further does not have the ability to continue

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our algorithm code and repeat until it does not

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have the ability to continue our

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algorithm code when this loop is completed.

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Now let's look at another loop,

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it is called to repeat a certain number

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of us, for example, repeat 10 times, what does this

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mean, this means that our loop with

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you will be repeated exactly a certain

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number of times, for example 10 times, how it

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will look,

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see also when the checkbox is pressed,

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repeat for example 10 times and execute

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all these commands, that is, exactly ten times

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our hero will execute these commands,

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then our algorithm can continue

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further, for example, we can also

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duplicate this command and now when

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he executes exactly ten times these

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commands he will then say hello for two seconds

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let's allow caretaker gal hello

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after exactly ten

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execution of these commands such cycles

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exist with you scratch repeat always

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repeat until not and repeat a certain

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number of times one more thing looks like a

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cycle

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this is wait until this is not really a loop,

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this is just an event waiting for some

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event, for example, waiting until the mouse is touched,

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what does it look like, look,

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in fact, maybe this is an empty loop that

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waits for an event, let's evaluate this is

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the algorithm, this is how it works,

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look, we will wait until the mouse is touched

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just like that, they touch the mouse pointer and

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then say hello for two seconds,

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press start, point the mouse and our hero

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says hello, that is, we get such a

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simple cycle that is in

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standby mode until this event, that

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is, at 10 we simply took advantage of

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what we are waiting for this event and then it is

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our next code on the screen, we

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get a wait cycle until some

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event and then we continue to execute

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our commands below in reality we say

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hello for two seconds, that is, such

00:08:31

cycles

00:08:32

exist scratch thank you for your attention

00:08:35

subscribe our channel like

00:08:37

comment ask questions everyone

00:08:39

good luck in 5th grade started

00:08:41

thank you

Description:

Привет друзья! Сегодня мы с вами изучим какие есть циклы в Scratch! На этом уроке, мы: ✔ Научимся использовать бесконечный цикл. ✔ Научимся использовать цикл с условием. ✔ Научимся делать цикл на выполнение N раз и цикл с ожиданием до события. Где нас можно найти ► ✔ Вступай в группу ВК - https://vk.com/wiseplat ✔ Дополнительные уроки с домашними заданиями можно найти на сайте WISEPLAT: https://wiseplat.org/ ✅ Теперь вы можете делать свои полноценные игры, с врагами, сердечками/жизнями и классным оформлением! Уроки по Scratch помогут в этом! - Уроки от #OlegShpagin 👨🏼💻 #урокискретч #scratchдляначинающих #scratchурокиигры Ставь лайк, если тебе понравилось видео 👍 ►► Подписывайся на канал! ✅ Начинаете программировать? – Повторяйте все то, что показываем в обучающем видео. Тогда вы будете закреплять материал и быстрее сможете начать программировать на Scratch. 👍 Смотрите наши обучающие видеоуроки и выучите Scratch быстрее всех! :)

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