ios - 如何检查阵列中重复的内容？

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Count the occurences a particular integer has in an array [duplicate]
                                
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我需要知道数组中正在重复的内容，而且我不确定要使用哪种方法。 [1,2,6,8,8,8,2]。我需要它来打印8 occurs 3 times 2 occurs 2 times。我该怎么做。

for(var i = 0; i < numberarray.count; i++){
}

最佳答案

let numbers = [1,2,6,8,8,8,2]
let cs = NSCountedSet(array: numbers)

cs.forEach { if cs.countForObject($0) > 1 { print("number: \($0) has an occurance of \(cs.countForObject($0))") } }

像这样吗

输出：

number: 2 has an occurance of 2
number: 8 has an occurance of 3

关于ios - 如何检查阵列中重复的内容？ ，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/35763641/