SwiftUI-布局-ForEach

注意点：

1. 添加 id
2. 需要索引的使用count

直接对数据循环

private struct NamedFont: Identifiable {
    let name: String
    let font: Font
    var id: String { name }
}

private let namedFonts: [NamedFont] = [
    NamedFont(name: "Large Title", font: .largeTitle),
    NamedFont(name: "Title", font: .title),
    NamedFont(name: "Headline", font: .headline),
    NamedFont(name: "Body", font: .body),
    NamedFont(name: "Caption", font: .caption)
]

var body: some View {
    ForEach(namedFonts) { namedFont in
        Text(namedFont.name)
            .font(namedFont.font)
    }
}

循环需要索引

ForEach(0 ..< list.count, id: .self){ index in
    Text("\(list[index])")
}

VStack{
    ForEach{
        ...
    }
}

List{
    ForEach{
        ...
    }
}