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go 语言之旅中的练习——斐波纳契闭包的一种实现方式
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//实现一个 fibonacci 函数,它返回一个函数(闭包),该闭包返回一个斐波纳契数列 `(0, 1, 1, 2, 3, 5, ...)` | |
package main | |
import "fmt" | |
// fibonacci is a function that returns | |
// a function that returns an int. | |
func fibonacci() func() int { | |
pre, next := 0, 1 | |
return func() int { | |
pre, next = next, pre + next | |
return next - pre | |
} | |
} | |
func main() { | |
f := fibonacci() | |
for i := 0; i < 10; i++ { | |
fmt.Println(f()) | |
} | |
} |
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