swift 3 如何将数组中的数字按顺序放入字典中?

How to put array numbers into a dictionary in sequence in swift 3?

我在这里尝试了以下代码,但没有得到所需的输出我需要将数组显示为字典以获得所需的输出,因为我拥有的 ["0.0": "50.0", "50.0": "100.0", "100.0": "150.0"][0.0, 50.0, 100.0, 150.0] in self.filteredPriceArr谁能帮我按要求实现这个?

       for (index,item) in self.filteredPriceArr.enumerated() {
            print(index)
            print(self.filteredPriceArr.count)
            if index + 1 != priceArray.count {
                priceDict.updateValue("\(self.filteredPriceArr[index + 1])", forKey: "\(self.filteredPriceArr[index])")
            }
            print(priceDict)
        }

我把你的代码放了,只有一个错误

也就是priceArray应该是filteredPriceArr

var filteredPriceArr = [0.0, 50.0, 100.0, 150.0]

var priceDict:[String:String] = [:]

for (index,item) in filteredPriceArr.enumerated() {
    print(index)
    print(filteredPriceArr.count)
    if index + 1 != filteredPriceArr.count {
        priceDict.updateValue("\(filteredPriceArr[index + 1])", forKey: "\(filteredPriceArr[index])")
    }
}

print(priceDict)

这里是输出

["0.0": "50.0", "100.0": "150.0", "50.0": "100.0"]

按照你问题中提到的顺序,你无法得到它

["0.0": "50.0", "50.0": "100.0", "100.0": "150.0"]

字典无法排序!!