什么是swift 2相当于swift 3“string contains”函数?通过npn.dev
问题描述:
你好, 我想知道什么是斯威夫特相当于3什么是swift 2相当于swift 3“string contains”函数?通过npn.dev
mySong.contains
为斯威夫特2的Xcode 7(因为我想为iPhone 4创建一个应用程序)。对不起,我的英语,因为我是法国人...和谷歌翻译帮我
我的代码:
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{
}
}
预先感谢您, npn.dev
答
我使用swift 2中的range string
方法和Xcode 7.3.1
let string = "This is only a test"
if string.rangeOfString("only") != nil {
print("yes")
}
希望它能帮助你。
谢谢,我会尝试 –
我不明白@Pal Singh Anand –
你不明白的兄弟? –