package mainimport ( "fmt")type Column struct { Name string `json:"name"` Type string `json:"type"`}func main() { a := []*Column{ {Name: "a", Type: "int"}, {Name: "b", Type: "int"}, } b := []*Column{ {Name: "a", Type: "int"}, {Name: "c", Type: "string"}, } c := []*Column{ {Name: "a", Type: "string"}, {Name: "d", Type: "int"}, }}比較 2 個對象列表時需要查找是否有重疊的 Name 和不同的 Type，如果沒有則返回 false。對優化邏輯有什么建議嗎？ func check(obj1,obj2){ // when comparing a and b it would return false as both Name="a" has identical Type="int"// when comparing b and c it would return true as both Name="a" have different Types}
1 回答
撒科打諢
TA貢獻1934條經驗 獲得超2個贊
您可以使用地圖來存儲和比較鍵：
package main
import (
"fmt"
)
type Column struct {
Name string `json:"name"`
Type string `json:"type"`
}
func check(c1, c2 []*Column) bool {
m := make(map[string]string)
for _, col := range c1 {
m[col.Name] = col.Type
}
for _, col := range c2 {
if t, found := m[col.Name]; found && t != col.Type {
return true
}
}
return false
}
func main() {
a := []*Column{
{Name: "a", Type: "int"},
{Name: "b", Type: "int"},
}
b := []*Column{
{Name: "a", Type: "int"},
{Name: "c", Type: "string"},
}
c := []*Column{
{Name: "a", Type: "string"},
{Name: "d", Type: "int"},
}
fmt.Println(check(a, b)) //false
fmt.Println(check(a, c)) //true
fmt.Println(check(b, c)) //true
}
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