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36 lines
655 B
Go
36 lines
655 B
Go
package main
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import (
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"fmt"
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"github.com/tal-tech/go-zero/core/fx"
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)
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func main() {
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result, err := fx.From(func(source chan<- interface{}) {
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for i := 0; i < 10; i++ {
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source <- i
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}
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}).Map(func(item interface{}) interface{} {
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i := item.(int)
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return i * i
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}).Filter(func(item interface{}) bool {
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i := item.(int)
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return i%2 == 0
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}).Distinct(func(item interface{}) interface{} {
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return item
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}).Reduce(func(pipe <-chan interface{}) (interface{}, error) {
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var result int
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for item := range pipe {
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i := item.(int)
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result += i
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}
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return result, nil
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})
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if err != nil {
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fmt.Println(err)
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} else {
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fmt.Println(result)
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}
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}
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