Swift中的ArraySlice索引超出范围

Question

我有以下格式的数据

["DATA1-1","DATA1-2","DATA1-3","DATA1-4","","DATA2-1","DATA2-2","DATA2-3"," DATA2-4","","DATA3-1","DATA3-2","DATA3-3","DATA3-4",""]。

我需要在数组的每个组件中执行特定的操作。组件用“”分隔。也就是说，我首先需要对["DATA1-1","DATA1-2","DATA1-3","DATA1-4"]进行操作，然后对["DATA2-1"进行同样的操作， "DATA2-2","DATA2-3","DATA2-4"]等

首先，我将数组分割成单独的段，然后遍历每个段：

func arraySliceFunction(airway: [String])
    {           
        // Slice the master array with all combinations of airways into separate arrays
        var airwaySlices = airway.split("")

        // Iterate through the slices of arrays
        for i in 0..<airwaySlices.count
        {
            let sliceComponent = airwaySlices[i]

            // Iterate through each slice
            for var y = 0; y < sliceComponent.count; y++
            {
                print("SLICES COMPONENT: \(sliceComponent[y])")
            }
        }
    }

它在这一行崩溃

print("SLICES COMPONENT: \(sliceComponent[y])")

总是在第二次迭代中出现错误：“fatal error: ArraySlice index out of range”。

不知道为什么...

提前谢谢你！

Answer 1

代码现在适用于 Swift 2.2

Answer 2

试试这样：

func arraySliceFunction(array: [String]) {
    // Slice the master array with all combinations of airways into separate arrays
    // Iterate through the each subArray 
    for subArray in array.split("") {
        // Iterate through each item in subArray
        for item in subArray {
            print("SLICES COMPONENT: \(item)")
        }
    }
}