如何存储变量的值并在下一次 for 循环迭代中使用它们

问：

这是包含 150 行的表的第 2 到第 7 列，我将其分隔到一个新文件中，以便于阅读和维护。 在 for 循环中，变量应更新并存储，以便在逻辑运行后的下一次循环迭代中使用;但现在变量在一次迭代后被重置。 如何让变量可以存储到下一次循环迭代中？

import SwiftUI
class StockSymbol1Data: ObservableObject {
    
    let secondaryRally = 1
    let naturalRally = 2
    let upwardTrend = 3
    let downwardTrend = 4
    let naturalReaction = 5
    let secondaryReaction = 6
    
    @Published var currentColumn: Double?
    @Published  var lastUpwardTrend: Double?
    @Published  var lastSecondaryRally: Double?
    @Published  var lastSecondaryReaction: Double?
    @Published  var lastNaturalRally: Double?
    @Published  var lastNaturalReaction: Double?
    @Published  var lastDownwardTrend: Double?
    @Published  var blackLineDownwardTrend: Double?
    @Published  var blackLineNaturalRally: Double?
    @Published  var redLineUpwardTrend: Double?
    @Published  var redLineNaturalReaction: Double?
}
struct StockSymbol1ColumnView: View {
    let close1: Double
    let headers: [String]
    let scrollViewWidth: CGFloat

    let priceMovePts: Double = 6
    let furtherPriceMovePts: Double = 3
    @ObservedObject var stockSymbol1Data: StockSymbol1Data
    var body: some View {
        ForEach(0..<6, id: \.self) { columnIndex in
            let columnClose: Double? = {
                switch columnIndex {
                case 0:
                    // Apply your rule here for Secondary Rally column
            return stockSymbol1Data.lastSecondaryReaction == close1 ? close1 : nil
        case 1:
                    // Apply your rule here for Natural Rally column
            return stockSymbol1Data.lastNaturalRally == close1 ? close1 : nil
        case 2:
                    // Apply your rule here for Upward Trend column
            return stockSymbol1Data.lastUpwardTrend == close1 ? close1 : nil
        case 3:
                    // Apply your rule here for DownwardTrend column
            return stockSymbol1Data.lastDownwardTrend == close1 ? close1 : nil
        case 4:
                    // Apply your rule here for NaturalReaction column
            return stockSymbol1Data.lastNaturalReaction == close1 ? close1 : nil
        case 5:
                    // Apply your rule here for Secondary Reaction column
             return stockSymbol1Data.lastSecondaryReaction == close1 ? close1 : nil
                    return nil
                }
            }()

            let textColor: Color = {
                switch columnIndex {
                case 2:
                    // Change text color for Upward Trend column to black
                    return .black
                case 3:
                    // Change text color forDownward Trend column to red
                    return .red
                default:
                    return .gray
                }
            }()

            Text(columnClose != nil ? "\(columnClose ?? 0.0)" : "")
                .frame(width: scrollViewWidth / CGFloat(headers.count), height: 15)
                .border(Color.gray, width: 2)
                .padding(.horizontal, 5)
                .foregroundColor(textColor)
        }
    }
}

我试过添加 Self。方法或其他方法，但新的循环迭代只是重置变量，无法获取上一个循环的结果和更新。我希望变量在一次循环迭代中更新，并且可以在随后的循环迭代中引用。