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charlie
2022-05-31 13:47:48 +08:00
parent ebf862e40b
commit 6d39dbb942
8 changed files with 72 additions and 18 deletions
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7
maps/map.go
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@ -17,8 +17,8 @@ type Map[K constraints.Ordered, V any] interface {
Clone() Map[K, V] // 复制
Clear() // 清空
Count() int // 数量
Iter() <-chan *Entry[K, V]
ForEach(f func(K, V))
Iter() <-chan *Entry[K, V] // 迭代器
ForEach(f func(K, V) bool) // ForEach
}
type Entry[K constraints.Ordered, V any] struct {
@ -41,8 +41,9 @@ func Merge[K comparable, V any](mm ...map[K]V) map[K]V {
func Join[K constraints.Ordered, V any](m Map[K, V], sep string, f func(k K, v V) string) string {
slice := make([]string, 0, m.Count())
m.ForEach(func(k K, v V) {
m.ForEach(func(k K, v V) bool {
slice = append(slice, f(k, v))
return false
})
return strings.Join(slice, sep)