按值排序字典 [英] Swift sort dictionary by value

问题描述

我有一个字典， [String：Double] 包含以下数据：

I have a dictionary, [String : Double] with the following data:

Museum1 : 8785.8971799638
Museum2 : 34420.9643422388
Museum3 : 826.467789130732
Museum4 : 304120.342151219

我想用双重值排序字典。我做了一些研究，但所有的例子都被弃用了当前版本的Swift

I'd like to sort the dictionary by the double value. I did some research, but all of the examples are deprecated for the current version of Swift

我试过使用这个代码从 Swift中按值排列的字典：

I've tried using this code from Sort Dictionary by values in Swift:

for (k,v) in Array(self.museumsDic).sorted({$0.0 < $1.0}) {
    println("\(k):\(v)")
}

但它不工作。如何用字母排序字典？

But it doesn't work. How can I sort the dictionary by its values?

推荐答案

目前还不清楚您的期望是什么。真的没有排序字典这样的东西。你的代码基本上是正确的，除了放错位置的括号。我试过这个：

It is not clear what your expectations are. There is really no such thing as a sorted dictionary. Your code is basically correct except for a misplaced parenthesis. I tried this:

let d = ["Museum1":8785.8971799638,
"Museum2":34420.9643422388,
"Museum3":826.467789130732,
"Museum4":304120.342151219]

for (k,v) in (Array(d).sorted {$0.1 < $1.1}) {
    println("\(k):\(v)")
}

结果：

Museum3:826.467789130732
Museum1:8785.8971799638
Museum2:34420.9643422388
Museum4:304120.342151219

如果你认为这是错误的，你需要解释为什么。

If you think that's wrong, you need to explain why.

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