如果在一个组件中有一个模型数组，把模型数组传递给子组件，如何做到在父组件中修改模型数组中一个元素

@Observed 
class Model1 { 
text: string; 
color: ResourceColor 
 
constructor(text: string, color: ResourceColor) { 
this.text = text 
this.color = color 
} 
} 
 
@Component 
struct SubView { 
// @Link models: Model1[] 
@ObjectLink model: Model1; 
build() { 
Row() { 
Column() { 
Text(this.model.text) 
.backgroundColor(this.model.color) 
} 
} 
} 
} 
 
@Entry 
@Component 
struct Test1 { 
@State models: Model1[] = [new Model1(“hello world”, Color.Red)] 
 
build() { 
Row() { 
Column() { 
ForEach(this.models, (item: Model1, index: number) => { 
SubView({ model: item }) 
}, (item: Model1, index: number) => { 
return index.toString() 
}) 
Button(‘Test view: clicked here’) 
.onClick(() => { 
// 下面两行都无法刷新ui 
this.models[0].color = Color.Blue 
// this.models = [new Model1(“hello world”, Color.Blue)] 
}) 
 
}.width(‘100%’) 
}.height(‘100%’) 
} 
}
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