안녕하세요 ^^&nbsp;&nbsp; 아&nbsp; 근데&nbsp; value={item.key} 로 해주셔야 해요 ^^&nbsp; 왜냐면 현재&nbsp; &nbsp;
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<div>&lt;select onChange={continentChangeHandler} value={Continent}&gt;</div>
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</div>
이 select에서&nbsp; value가&nbsp; &nbsp;Continent State 이잖아요 ㅎ&nbsp; 근데&nbsp; Continent State이&nbsp;
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<div>const [Continent, setContinent] = useState(1)</div>
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숫자로 0 1 2 3 ... 이런식으로 되어있어요&nbsp;
그래서&nbsp; option의 value도&nbsp; 숫자로 되어있는 key 값을 사용해주셔야 합니다 ^^&nbsp; 
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<div>const Continents = [</div>
<div>{ key: 1, value: "Africa" },</div>
<div>{ key: 2, value: "Europe" },</div>
<div>{ key: 3, value: "Asia" },</div>
<div>{ key: 4, value: "North America" },</div>
<div>{ key: 5, value: "South America" },</div>
<div>{ key: 6, value: "Australia" },</div>
<div>{ key: 7, value: "Antarctica" }</div>
<div>]</div>
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