Coroutine

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You use the yield statement in an iterator to provide the next value or signal the end of an iteration.
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코루틴은 μˆœμ„œκ°€ μžˆλŠ” μž‘μ—…μ„ 맀 ν”„λ ˆμž„(λ˜λŠ” μ§€μ •λœ μ‹œκ°„) μ°¨λ‘€λŒ€λ‘œ μˆ˜ν–‰ν•˜κ³  μ’…λ£Œλ˜λŠ” ν”„λ‘œμ„ΈμŠ€
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코루틴은 μŠ€λ ˆλ“œκ°€ μ•„λ‹˜ (λ°±μ—”λ“œμ—μ„œ μ‹€ν–‰ν•˜λ‹€κ°€ λŒμ•„μ˜€λŠ”κ²ƒμ΄ μ•„λ‹˜! λ§€ν”„λ ˆμž„ μ‹€ν–‰λ˜λ―€λ‘œ update 와 κ°™λ‹€.)
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μŠ€λ ˆλ“œ μ‚¬μš©ν•˜κ³  μ‹ΆμœΌλ©΄ unity job μ‹œμŠ€ν…œμ„ μ‚¬μš©ν•˜λŠ”κ²ƒμ„ μΆ”μ²œ

References

코루틴 - Unity 맀뉴얼
코루틴을 μ‚¬μš©ν•˜λ©΄ μž‘μ—…μ„ λ‹€μˆ˜μ˜ ν”„λ ˆμž„μ— λΆ„μ‚°ν•  수 μžˆμŠ΅λ‹ˆλ‹€. Unityμ—μ„œ 코루틴은 싀행을 μΌμ‹œ μ •μ§€ν•˜κ³  μ œμ–΄λ₯Ό Unity에 λ°˜ν™˜ν•˜μ§€λ§Œ μ€‘λ‹¨ν•œ λΆ€λΆ„μ—μ„œ λ‹€μŒ ν”„λ ˆμž„μ„ 계속할 수 μžˆλŠ” λ©”μ„œλ“œμž…λ‹ˆλ‹€.
https://docs.unity3d.com/kr/2022.3/Manual/Coroutines.html
yield statement - provide the next element in an iterator - C#
Use the yield statement in iterators to provide the next value or signal the end of an iteration
https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/statements/yield