我想分割一个数组,如下所示。
let arrayToSplit = ["Europe|#|France|#|Paris", "Europe|#|Italy|#|Rome", "America|#|USA|#|Washington", "America|#|Canada|#|Ottawa"]
Into
let firstArray = ["Europe", "Europe", "America", "America"]
let secondArray = ["France", "Italy", "USA", "Canada"]
let thirdArray = ["Paris", "Rome", "Washington", "Ottawa"]
通过分成这三个数组,我想分割数据收入并将其呈现在一个UITableView
.
不是最好的解决方案,但具有预期的结果(提示在代码注释中):
let arrayToSplit = ["Europe|#|France|#|Paris", "Europe|#|Italy|#|Rome", "America|#|USA|#|Washington", "America|#|Canada|#|Ottawa"]
var firstArray = [String]()
var secondArray = [String]()
var thirdArray = [String]()
for element in arrayToSplit {
// new array with substrings divided by "|#|" e.g. ["Europe", "Europe", "America", "America"]
let newArray = element.componentsSeparatedByString("|#|")
firstArray.append(newArray[0])
secondArray.append(newArray[1])
thirdArray.append(newArray[2])
}
print("first array: \(firstArray)") // first array: ["Europe", "Europe", "America", "America"]
print("second array: \(secondArray)") // second array: ["France", "Italy", "USA", "Canada"]
print("third array: \(thirdArray)") // third array: ["Paris", "Rome", "Washington", "Ottawa"]
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