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32 lines
641 B
Go
32 lines
641 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/mr"
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)
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var (
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persons = []string{"john", "mary", "alice", "bob"}
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friends = map[string][]string{
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"john": {"harry", "hermione", "ron"},
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"mary": {"sam", "frodo"},
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"alice": {},
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"bob": {"jamie", "tyrion", "cersei"},
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}
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)
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func main() {
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var allFriends []string
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for v := range mr.Map(func(source chan<- interface{}) {
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for _, each := range persons {
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source <- each
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}
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}, func(item interface{}, writer mr.Writer) {
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writer.Write(friends[item.(string)])
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}, mr.WithWorkers(100)) {
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allFriends = append(allFriends, v.([]string)...)
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}
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fmt.Println(allFriends)
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}
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