Question

希望按顺序对数组var myArray = ["Cat","Zoo","Ball","Cat"]进行排序，使所有“Cat”（可以是任何东西）都是数组的@前端，而数组的其余部分按字母顺序排序。

Input Array : ["Cat","Zoo","Ball","Cat"]
Expected Output Array: ["Cat", "Cat", "Ball", "Zoo"]

Answer 1

以下代码是我找到的解决方案之一：

var myArray = ["Cat","Zoo","Ball","Cat"]
let OrderString = "Cat"
myArray.sortInPlace({ (s1, s2) in
    //Sorting based on OrderString
    //First string is same as OrderString -- Don't swap order
    if s1 == OrderString{
        return true
    }else if s2 == OrderString { //Second String is same as OrderString -- Swap order
        return false
    }
    return s1.localizedStandardCompare(s2) == NSComparisonResult.OrderedAscending
})

print(myArray)

Demo Link

在swift中自定义排序字符串数组

1 个答案: