Question

我是编程新手。我做了一个删除阿拉伯语文本输入元音的函数。我的问题是，如果我使用最好的循环来完成任务，还是有更好更简洁的方法来编写它？

改进代码会很好。谢谢。

// It seems to work now. I solved it.
// What do you think? :) Happy that I managed to solve it.
// Programming is fun!!! :D
var arabic:String = "الْعَرَبِيَّةُ لُغَةٌ جَمِيلَةٌ"

func txtStripper(arabic: String) -> String {
    var strippedTxt = ""
    for character in arabic {
        if character != "َ" && character != "ِ" && character != "ّ" && character != "ْ" && character != "ُ" && character != "ٌ" && character != "ً" && character != "ٍ" {
            strippedTxt += toString(print(character))
        }
    }
    return strippedTxt
}
txtStripper(arabic)

Answer 1

首先，您可以使用if函数清理contains语句。

func txtStripper(arabic: String) -> String {
    var strippedTxt = ""
    let vowels : Character[] = ["َ", "ِ", "ّ", "ْ", "ُ", "ٌ", "ً", "ٍ"]

    for character in arabic {
        if !contains (vowels, character) {
            strippedTxt += toString(character)
        }
    }
    return strippedTxt
}

接下来，如果您对闭包感到满意，可以用更简洁的方式重写整个函数，如下所示：

func txtStripperWithClosures(arabic:String) -> String {
    let vowels : Character[] = ["َ", "ِ", "ّ", "ْ", "ُ", "ٌ", "ً", "ٍ"]
    return Array(arabic).filter({!contains(vowels, $0)}).reduce("",+)
}

它的工作原理如下：

Array(arabic)将字符串转换为字符[]
filter({!contains(vowels, $0)})从数组中删除元音字符
reduce("",+)将字符列表重新加入String

阿拉伯语文本脱衣舞娘/解析器

1 个答案: