LazyVGrid 不訪問卡片的全部
LazyVGrid(columns: [GridItem(.adaptive(minimum: 65))])
設(shè)定最小寬度為65，能放幾個放幾個，橫向模式后也適用

LazyVGrid(columns: [GridItem(.fixed(200)), GridItem(.flexible()),GridItem()]) {
                ForEach(emojis[0..<emojiCount], id: \.self) { emoji in
                    CardView(content: emoji)}
            }

LazyVGrid(columns: [GridItem(), GridItem(),GridItem()]) {
                ForEach(emojis[0..<emojiCount], id: \.self) { emoji in
                    CardView(content: emoji)}
                .aspectRatio(2/3, contentMode: .fit)
            }
            .foregroundColor(.red)
            Spacer()
//寬度2/3 填充

 var body: some View {
        VStack {
//ScrollView 滑塊
            ScrollView {
//LazyVGrid 自定義列數(shù)與高寬比例，aspectRatio 高寬比
                LazyVGrid(columns: [GridItem(), GridItem(),GridItem()]) {
                    ForEach(emojis[0..<emojiCount], id: \.self) { emoji in
                        CardView(content: emoji)}
                    .aspectRatio(2/3, contentMode: .fit)
                }
            }
            .foregroundColor(.red)
            Spacer()
            HStack {
                add
                Spacer()
                remove
            }
            .font(.largeTitle)
        }
        .padding()
    }