在Swift中如何连接字符串和整数

Question

我本以为在Swift中不同类型之间的连接是很简单的，但事实并非如此。有什么解决方法吗？

var boy = "Bart Simpson"
var age = 7
print(boy + " is " + age)

- user1162328

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print(boy + " is " + "\(age)") - oisdk

学习基础知识，它在Swift文档中：https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/StringsAndCharacters.html#//apple_ref/doc/uid/TP40014097-CH7-ID292 - Eric Aya

Answer 1

非常简单，将所有可打印的对象用 \( ) 包装起来即可。

let boy = "Bart Simpson"
let age = 7
print("\(boy) is \(age)")

- vadian

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你也可以这样做：println("\("Bart Simpson") is \(7)") 如果你不想声明那些临时变量，而是直接打印出值。 - lelelo

Answer 2

let boy = "Bart Simpson"
let age = 7

let sentence = String(format:"%@ is %d", boy, age)
println(sentence) // "Bart Simpson is 7"

- Leo Dabus