关于 `map[string]string` 和 `map[string]map[string]string` 的抉择
数据字段:shop
>member
>name
(都是string
)
假设有10万左右shop
,每个shop
有1千左右member
以下两个方案哪个更优呢
// ShopMemberName1 方案一
type ShopMemberName1 map[string]string
func (m ShopMemberName1) GetMemberName(shop string,member string) (string,bool) {
name,ok:= m[shop+member]
return name,ok
}
// ShopMemberName2 方案二
type ShopMemberName2 map[string]map[string]string
func (m ShopMemberName2) GetMemberName(shop string,member string) (string,bool) {
if sm,ok:=m[shop];ok{
name,ok:= sm[member]
return name,ok
}
return "",false
}
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