为什么在Swift操场上进行简单的加法操作时会出错？

Question

I have very simple code,

var i = 1
var f = 10.34

println("i = \(i)") //fine
println("f = \(f)") //fine
println("i + f = \(i + f)")//error --> could not find member init 

Now why I am getting error in last line? Am I not allowed to write expression with different data type in println?

Answer 1

In this line println("i + f = \\(i + f)") you are adding Int and Double which is not possible in swift.

You can convert i to double and your code will be:

println("i + f = \(Double(i) + f)")  // i + f = 11.34