swift 实现将table表中的某一列或者多列数据，按照“,”拆分为多行数据拆分为多行

最新推荐文章于 2024-07-07 22:47:13 发布

Joshwang0830

最新推荐文章于 2024-07-07 22:47:13 发布

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分类专栏： Table表拆分字符串数组拆分 Swift ios开发经验文章标签： Swift 字符串数组拆分 Table表拆分

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该博客介绍了如何使用Swift将二维字符串数组中包含逗号和冒号的元素拆分为多行数据。通过两个函数splitOneLineIntoMultipleLinesByComma和splitOneLineIntoMultipleLinesByColon，分别实现了按逗号和(StartValue:Step:EndValue)格式进行拆分。以示例数据为例，详细展示了拆分过程和输出结果。

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1.初始化一个二维的字符串数组：

let ArrayList = [["Pre-condition","RX",""],["Execution","CA_TxAnt","CA_Downlink_Channel_List"],["aaa","0,1,2,3","18575:5:18589"]]

2.实现方法：输入一字符串数组，按照逗号拆分为一个二维字符串数组

输入：

var rowArraylist1: [String] = ["aaa","bbb","0,1,2,3","ccc"]

func splitOneLineIntoMultipleLinesByComma(rowArray: [String], valueIndex: Int) -> [[String]] {
    var rowArrArr: [[String]] = [[]]
    var newRowArray = rowArray
    let valueArray = rowArray[valueIndex].split(separator: ",")
    for newValue in valueArray {
        newRowArray[valueIndex] = String(newValue)
        rowArrArr.append(newRowArray)
    }
    rowArrArr = Array(rowArrArr[rowArrArr.index(after: rowArrArr.startIndex)...])
    return rowArrArr
}

输出：

["aaa", "bbb", "0", "ccc"]

["aaa", "bbb", "1", "ccc"]

["aaa", "bbb", "2", "ccc"]

["aaa", "bbb", "3", "ccc"]

3.实现方法：输入一字符串数组，按照（StartValue:Step:EndValue）拆分为一个二维字符串数组

输入：

var rowArraylist: [String] = ["aaa","bbb","18575:5:18589","ccc"]

func splitOneLineIntoMultipleLinesByColon(rowArray: [String], valueIndex: Int) -> [[String]] {
    var rowArrArr: [[String]] = [[]]
    var newRowArray = rowArray
    let valueArray = rowArray[valueIndex].split(separator: ":")
    let min = Int(valueArray[0])!
    let unit = Int(valueArray[1])!
    let max = Int(valueArray[2])!
    let distance = max - min
    var addNumberOfLine = distance / unit
    let addNumberOfLines = distance % unit
    if addNumberOfLines != 0 {
        addNumberOfLine = addNumberOfLine + 1
    }
    for i in 0...addNumberOfLine {
        if  i == addNumberOfLine {
            newRowArray[valueIndex] = String(max)
        }else {
            newRowArray[valueIndex] = String(i * unit + min)
        }
        rowArrArr.append(newRowArray)
    }
    rowArrArr = Array(rowArrArr[rowArrArr.index(after: rowArrArr.startIndex)...])
    return rowArrArr
}

func splitOneLineIntoMultipleLinesByColon(rowArray: [String], valueIndex: Int) -> [[String]] {
        var rowArrArr: [[String]] = [[]]
        var newRowArray = rowArray
        let valueArray = rowArray[valueIndex].split(separator: ":")
        let min = Int(valueArray[0])!
        let unit = Int(valueArray[1])!
        let max = Int(valueArray[2])!
        let distance = max - min
        let addNumberOfLine = distance / unit
        let rest = distance % unit
        for i in 0...addNumberOfLine {
            newRowArray[valueIndex] = String(i * unit + min)
            rowArrArr.append(newRowArray)
        }
        if rest != 0 {
            newRowArray[valueIndex] = String(valueArray[2])
            rowArrArr.append(newRowArray)
        }
        rowArrArr = Array(rowArrArr[rowArrArr.index(after: rowArrArr.startIndex)...])
        return rowArrArr
    }

输出：

["aaa", "bbb", "18575", "ccc"]

["aaa", "bbb", "18580", "ccc"]

["aaa", "bbb", "18585", "ccc"]

["aaa", "bbb", "18589", "ccc"]

4.输入初始化的二维的字符串数组，按以上两种方式将字符串数组拆分

调用splitOneLineIntoMultipleLinesByColon和splitOneLineIntoMultipleLinesByComma两个函数实现字符串数组的拆分

输入：

let ArrayList = [["Pre-condition","RX",""],["Execution","CA_TxAnt","CA_Downlink_Channel_List"],["aaa","0,1,2,3","18575:5:18589"]]

func handleCompoundTable(_ lineArrArr: [[String]]) -> [[String]] {
    var index: Int = 0
    var newLineArrArr = lineArrArr
    var needRecheck = false
    while index < newLineArrArr.count - 1 {
        for (rowIndex, rowArray) in newLineArrArr.enumerated() {
            for (valueIndex, value) in rowArray.enumerated() {
                if value.contains(",") {
                    var upperLineArrArr = newLineArrArr[...(rowIndex - 1)]
                    let lowerLineArrArr = newLineArrArr[(rowIndex + 1)...]
                    upperLineArrArr.append(contentsOf: splitOneLineIntoMultipleLinesByComma(rowArray: rowArray, valueIndex: valueIndex))
                    if Array(lowerLineArrArr).count != 0 {
                        upperLineArrArr.append(contentsOf: lowerLineArrArr)
                    }
                    newLineArrArr = Array(upperLineArrArr)
                    needRecheck = true
                    break
                }else if value.contains(":") {
                    var upperLineArrArr = newLineArrArr[...(rowIndex - 1)]
                    let lowerLineArrArr = newLineArrArr[(rowIndex + 1)...]
                    upperLineArrArr.append(contentsOf: splitOneLineIntoMultipleLinesByColon(rowArray: rowArray, valueIndex: valueIndex))
                    if Array(lowerLineArrArr).count != 0 {
                        upperLineArrArr.append(contentsOf: lowerLineArrArr)
                    }
                    newLineArrArr = Array(upperLineArrArr)
                    needRecheck = true
                    break
                }
            }
            index = rowIndex
            guard needRecheck else {
                continue
            }
            needRecheck = false
            break
        }
    }
    return newLineArrArr
}

输出打印实现：

var ArrayLists = Array<Array<String>>()

ArrayLists = handleCompoundTable(ArrayList)

for (arrIndex, arrList) in ArrayLists.enumerated() {

print(arrList)

}

输出结果：

["Pre-condition", "RX", ""]

["Execution", "CA_TxAnt", "CA_Downlink_Channel_List"]

["aaa", "0", "18575"]

["aaa", "0", "18580"]

["aaa", "0", "18585"]