Files
the-way-to-go_ZH_CN/eBook/exercises/chapter_6/fibonacci_closure.go
2015-03-03 12:25:25 -05:00

21 lines
358 B
Go
Executable File

package main
// fib returns a function that returns
// successive Fibonacci numbers.
func fib() func() int {
a, b := 1, 1
return func() int {
a, b = b, a+b
return b
}
}
func main() {
f := fib()
// Function calls are evaluated left-to-right.
// println(f(), f(), f(), f(), f())
for i:=0; i<=9; i++ {
println(i+2, f() )
}
}