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[英]What is the equivalent of the Visual Basic “Mid” function in Swift 4?
[英]What is the swift 2 equivalent to the swift 3 “string contains” function? by npn.dev
您好,我想知道Swift 3的等效功能
mySong.contains
Xcode 7上的Swift 2(因為我想為iPhone 4創建一個應用程序)。 對不起,我是英語,因為我是法語...,谷歌翻譯幫助我
我的代碼:
func gettingSongName(){
let folderURL = NSURL(fileURLWithPath: NSBundle.mainBundle().resourcePath!)
do{
let songPath = try NSFileManager.defaultManager().contentsOfDirectoryAtURL(folderURL, includingPropertiesForKeys: nil, options: .SkipsHiddenFiles)
for song in songPath{
var mySong = song.absoluteString
if mySong.contains(".mp3") { // Value of type 'String' has no member 'contains'
let findString = mySong.components(separatedBy: "/") // Value of type 'String' has no member 'components'
mySong = findString[findString.count-1]
mySong = mySong.replacingOccurrences(of: "%20", with: " ") // Value of type 'String' has no member 'replacingOccurences'
mySong = mySong.replacingOccurrences(of: "e%CC%81", with: "é") // Value of type 'String' has no member 'replacingOccurences'
mySong = mySong.replacingOccurrences(of: "e%CC%82", with: "ê") // Value of type 'String' has no member 'replacingOccurences'
mySong = mySong.replacingOccurrences(of: ".mp3", with: "") // Value of type 'String' has no member 'replacingOccurences'
songs.append(mySong)
print(mySong)
}
}
myTableView.reloadData()
}catch{
}
}
預先感謝您, npn.dev
我在Swift 2和Xcode 7.3.1中使用range string
方法
let string = "This is only a test"
if string.rangeOfString("only") != nil {
print("yes")
}
希望對您有幫助。
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