string - “字符串”无法转换为 '[(String)]'

Question

我试图用“,”分割从 URL 返回的字符串，但是当我尝试时

var tagArray = [String]()
if response.responseObject != nil {
                let data = response.responseObject as NSData
                let str = NSString(data: data, encoding: NSUTF8StringEncoding)!
                self.tagArray = str.componentsSeparatedByString(", ") as String
                println("response: \(self.tagArray)") //prints the HTML of the page
            }

行 self.tagArray = str.componentsSeparatedByString(", ") as String 抛出错误“'String”无法转换为 '[(String)]'”

有人知道如何正确地将字符串拆分到数组中吗？

Answer 1

有问题的行在转换中缺少[] - 当您需要转换为数组时，您正在转换为String 字符串:

var tagArray = [String]()
if response.responseObject != nil {
    let data = response.responseObject as NSData
    let str = NSString(data: data, encoding: NSUTF8StringEncoding)!
    self.tagArray = str.componentsSeparatedByString(", ") as [String]
    println("response: \(self.tagArray)") //prints the HTML of the page
}