数组值应该类似(字母,数字和特殊字符) [英] The array value should be sort like (alphabetic, numbers and special characters)
本文介绍了数组值应该类似(字母,数字和特殊字符)的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我尝试按如下方式对数组进行排序:
I tried to sort like the array as follows:
let students: Set = ["23412334","&234@fwv","Kofi", "Abena", "Peter", "Kweku", "Akosua"]
let sortedStudents = students.sorted()
print(sortedStudents)
输出:
["&234@fwv", "23412334", "Abena", "Akosua", "Kofi", "Kweku", "Peter"]
但我需要像
["Abena", "Akosua", "Kofi", "Kweku", "Peter", "23412334","&234@fwv"]
推荐答案
let words = ["23412334","&234@fwv","Kofi", "Abena", "Peter", "Kweku", "Akosua"]
func sortedNumbersLast(words: [String]) -> [String] {
var startsWithDigit = [String]()
var startsWithCharacter = [String]()
var startsWithSymbol = [String]()
for word in words {
if let first = word.characters.first {
if first >= "0" && first <= "9" {
startsWithDigit.append(word)
}
else {
if(!(first >= "a" && first <= "z") && !(first >= "A" && first <= "Z") ){
startsWithSymbol.append(word)
}else{
startsWithCharacter.append(word)
}
}
}
}
return startsWithCharacter.sorted(by: <) + startsWithDigit.sorted(by: <) + startsWithSymbol.sorted()
}
print(sortedNumbersLast(words: words))
[Abena,Akosua,Kofi,Kweku,Peter,23412334,& 234 @ fwv]
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