ArraySlice 索引在 Swift 中超出范围

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操作。组件以“”分隔。换句话说，我首先需要对 ["DATA1-1","DATA1-2","DATA1-3","DATA1-4"] 执行一个操作，然后对 ["DATA2-1", "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])")
            }
        }
    }

它在这一行崩溃了

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

总是在第二次迭代期间出现错误:“ fatal error :ArraySlice 索引超出范围”。

不知道为什么...

提前致谢!

Answer 1

像这样尝试:

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)")
        }
    }
}