我有一个结构体，包含一堆引用不同类型统计数据的属性。示例对象是：

class Stats {
    var stats: [Stat]
}
struct Stat {
    var id: UUID
    var countA: Int
    var countB: Int
    var countC: Int
    var totalAAttempts: Int
    var totalBAttempts: Int
    var totalCAttempts: Int
    ...
}

字符串
我用类中的一堆函数来显示百分比...

class Stats {
    var stats: [Stat]
    var countAPerc: Double {
        let totalA = stats.reduce(0) { total, stat in
            total + stat.countA
        }
        let totalAttemps = stats.reduce(0) { total, stat in
            total + stat.totalAAttempts
        }
        return Double(totalA) / Double(totalAttempts)
    }
    var countAPercDisplay: String {
        String(format: "%.1f", countAPerc * 100) + "%"
    }
    var countBPerc: Double {
        let totalB = stats.reduce(0) { total, stat in
            total + stat.countB
        }
        let totalAttemps = stats.reduce(0) { total, stat in
            total + stat.totalBAttempts
        }
        return Double(totalB) / Double(totalAttempts)
    }
    var countBPercDisplay: String {
        String(format: "%.1f", countBPerc * 100) + "%"
    }
    ...
}

型
有没有可能在函数中指定属性名作为参数，以防止重复编写相同的代码？类似于：

func summarizeProperty(_ countProperty: PROPERTYNAME1, _ totalProperty: PROPERTYNAME2) -> Double {
    let totalCount = stats.reduce(0) { total, stat in
        total + stat.PROPERTYNAME1
    }
    let totalAttemps = stats.reduce(0) { total, stat in
        total + stat.PROPERTYNAME2
    }
    return Double(totalCount) / Double(totalAttempts)
}

func summarizedProperty(_ countProperty: PROPERTYNAME1, _ totalProperty: PROPERTYNAME2) -> String {
    let summarized = summarizeProperty(PROPERTYNAME1, PROPERTYNAME2)
    return String(format: "%.1f", summarized * 100) + "%"
}

型
然后叫它...

Text(summarizedProperty(countA, totalAAttempts))

型
提前致谢