var myString = "43321 This is example hahaha 4356-13"
我想要结果
var resultString = "This is example"
换句话说，我想删除某些单词和数字。
这怎么可能？
我已经进行了搜索，但是找不到我想要的东西。
请回答我。谢谢
好的，确切地说，我想删除所有数字，只删除我想要的某些单词。
例）
let testString1 = "123123123123"
let testString2 = "apple 65456876"
let testString3 = "apple banana3 horse5"
let testString4 = "44 apple banana1banana 5horse"
let testString5 = "123 banana123 999"
我想删除“苹果”一词。
所以结果是
let resultString1 = ""
let resultString2 = ""
let resultString3 = "banana3 horse5"
let resultString4 = "banana1banana 5horse"
let resultString5 = "banana123"
我认为使用正则表达式解决方案会更快：
//use NSMutableString so the regex.replaceMatches later will work
var myString:NSMutableString = "43321 This is example hahaha 4356-13"
//add more words to match by using | operator e.g. "[0-9]{1,}|apple|orange"
//[0-9]{1,} simply removes all numbers but is more efficient than [0-9]
let regexPattern = "[0-9]{1,}|apple"
//caseInsensitive or the regex will be much longer
let regex = try NSRegularExpression(pattern: regexPattern, options: .caseInsensitive)
var matches = regex.matches(in: myString as String, options: .withoutAnchoringBounds, range: range)
regex.replaceMatches(in: myString, options: .withoutAnchoringBounds, range: range, withTemplate: "")
print(myString) // This is example hahaha -
后续字符串
var testString3: NSMutableString = "apple banana horse"
matches = regex.matches(in: testString3 as String, options: .withoutAnchoringBounds, range: range)
regex.replaceMatches(in: testString3, options: .withoutAnchoringBounds, range: range, withTemplate: "")
print(testString3) // banana horse
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