将字符串转换为UTF8String-Swift-iOS-XMLParser

let text = "&to[]=0532332028&to[]=0532332027"
let output = text.addingPercentEncoding(withAllowedCharacters: .alphanumerics)

输出:

"%26to%5B%5D%3D0532332028%26to%5B%5D%3D0532332027"

要将字符串转换为UTF8,可以遵循以下代码

    let text = "&to[]=0532332028&to[]=0532332027"
    let encodeText = text.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())!
    print("encodeText : \(encodeText)")

输出 :

但是根据上面的代码,您不会为“&”获得%26,如果你想要的话 您可以创建一个自定义方法来替换“&与“%26”一起使用 stringByReplacingOccurrencesOfString “方法。