Question

我有一个字符串数组，我需要将其转换为带有多行的单个字符串

 var array = ["A","B","C","D","E"]
 var multiLineString = //convert array to a string
 println("\(multiLineString)")

输出应为：

  A 
  B 
  C 
  D 
  E

Answer 1

那应该是这样的：

var array = ["A","B","C","D","E"]
var multiLineString = join("\n", array)
println("\(multiLineString)")

请注意，控制台不会在多行上打印它。

更新：要获得标签的高度以显示此字符串：

let label = UILabel()
label.text = multiLineString
label.numberOfLines = 0
label.lineBreakMode = NSLineBreakMode.ByWordWrapping
label.sizeToFit()
println("Height: \(label.frame.height)")

Answer 2

尝试join：

var array = ["A","B","C","D","E"]
var multiLineString = join("\n", array)
println("\(multiLineString)")

Answer 3

由于Swift 2.0，这会产生错误：

Cannot invoke join with an argument list of type (String, [String])

请改用：

array.joinWithSeparator("\n")

将字符串数组显示为多行字符串 - Swift

3 个答案: