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54 lines
777 B
54 lines
777 B
package main
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import (
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"fmt"
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"strings"
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)
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//闭包
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func adder(x int) func(int) int {
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return func(y int) int {
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x += y
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return x
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}
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}
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func suffixFunc(suffix string) func(string) string {
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return func(name string) string {
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if !strings.HasSuffix(name, suffix) {
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return name + suffix
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}
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return name
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}
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}
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func cal(base int) (func(int) int, func(int) int) {
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add := func(i int) int {
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base += i
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return base
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}
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sub := func(i int) int {
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base -= i
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return base
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}
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return add, sub
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}
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func main() {
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a, b := cal(10)
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fmt.Println(a(20), b(30))
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fmt.Println(a(100), b(80))
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//jpgFunc := suffixFunc(".jpg")
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//res := jpgFunc("test.jpg")
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//fmt.Println(res)
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//a := adder(10)
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//fmt.Println(a(20))
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//fmt.Println(a(40))
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//
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//b := adder(20)
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//fmt.Println(b(40))
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}
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