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25 lines
435 B
25 lines
435 B
package main
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import "fmt"
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// 闭包：函数 + 函数内不能访问到变量 [能够读取其他函数内部变量的函数]
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// 闭包目的: 间接访问一个变量
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func ins() func() int {
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i := 0
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return func() int {
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i++
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return i
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}
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}
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func main() {
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nextInt := ins()
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fmt.Println(nextInt())
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fmt.Println(nextInt())
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fmt.Println(nextInt())
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// 特定的函数变量是唯一的
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nextInts := ins()
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fmt.Println(nextInts())
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}
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