Question

我正在使用以下代码从字符串中删除停用字词但最终修剪其他字样，我只想删除特定字词来自字符串而不修剪其他单词。

 import Foundation

var sentence = "God have created the creatures at his best"
let wordToRemove = "at"


if let range = sentence.range(of: wordToRemove) {
   sentence.removeSubrange(range)
}

print(sentence) // God have creed the creures  his best

Answer 1

首先编写Build-In类String

的扩展

extension String {

    func contains(word : String) -> Range<String.Index>?
    {
        return self.range(of: "\\b\(word)\\b", options: .regularExpression)
    }
}

然后编写以下代码以删除句子中的特定单词

var sentence = "God have created the creatures at his best"
let wordToRemove = "at"

if let range  = sentence.contains(word: wordToRemove) {
     sentence.removeSubrange(range)
     print(sentence)
}

 //Output : God have created the creatures  his best

Answer 2

根据我对停用词的理解，它们可以出现在句子中的任何一点，包括作为第一个或最后一个词。因此，解决方案应支持在句子中的任何位置删除它们。

import Foundation

var sentence = "at God have created the creatures at his best at"
let wordsToRemove = ["at", "his"]

let words = sentence.components(separatedBy: " ")
sentence = words.filter({ wordsToRemove.contains($0) == false }).joined(separator:" ")

// sentence is now "God have created the creatures best"

Answer 3

import Foundation

var sentence = "God have created the creatures at at at at his best"
let words = [" at ", " his "]
var index = 0
while index < words.count {
    let word = words[index]
    if let range = sentence.range(of: word) {
        sentence = sentence.replacingOccurrences(of: word, with: " ", options: [], range: range)
    } else {
        index += 1
    }
}

print(sentence)

上帝创造了最好的生物

Answer 4

.closeme {
    -webkit-animation-name: closeanimaton;
    -webkit-animation-duration: 3s; 
    -webkit-animation-iteration-count: 1;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-delay: -1.5s;
    -webkit-animation-direction: alternate;
    -webkit-transform-origin: bottom;
    animation-name: closeanimaton;
    animation-duration: 3s; 
    animation-iteration-count: 1;
    animation-timing-function: ease-in-out;
    animation-delay: -1.5s;
    animation-direction: alternate;
    animation-fill-mode: forwards;
    transform-origin: bottom;
    -moz-animation: none;
}

@-webkit-keyframes closeanimaton { 
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(35deg); }
}

@keyframes closeanimaton { 
    0% { transform: rotate(0deg); }
    100% { transform: rotate(35deg); }
}

你可以尝试这种方式。

删除字符串中的停用词而不修剪Swift中的其他单词

4 个答案: