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17 lines
335 B
17 lines
335 B
// 泛型工具类型：Readonly<Type> 将 Type 的所有属性都设置为 readonly（只读）
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interface Props {
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id: string
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children: number[]
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}
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type ReadonlyProps = Readonly<Props>
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// 所有属性都是只读
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let p1: ReadonlyProps = {
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id: '1',
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children: [1, 3]
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}
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// 属性是只读，不能修改
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// p1.id = '2'
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