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【笔记】Go结构体自定义排序
source link: https://blog.loli.fj.cn/2023/05/16/Go%E7%BB%93%E6%9E%84%E4%BD%93%E8%87%AA%E5%AE%9A%E4%B9%89%E6%8E%92%E5%BA%8F/
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【笔记】Go结构体自定义排序
2023-05-16
Go通过实现接口实现结构体自定义排序
定义自定义结构体
type User struct {
Id int
}
type UserSlice []User
// Len 获取切片长度
func (userSlice UserSlice) Len() int {
return len(userSlice)
}
// Less 定义排序条件，如果返回false，就进行位置交换
func (userSlice UserSlice) Less(i, j int) bool {
return userSlice[i].Id < userSlice[j].Id
}
// Swap 定义元素交换方式
func (userSlice UserSlice) Swap(i, j int) {
userSlice[i], userSlice[j] = userSlice[j], userSlice[i]
}
调用排序方法
// 定义变量
var users = UserSlice{User{2}, User{1}, User{3}}
// 进行排序
sort.Sort(users)
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