我想让我的代码更具可读性，所以我决定制作一些重复的字典键，软编码...所以我创建了一个新的 .swift 文件，里面有 2 个结构:
struct DatabaseTableNames {
let Photo = PhotoTable()
}
private struct PhotoTable {
let lowQuality = "lowQuality"
let highQuality = "highQuality"
let numberOfLikes = "numberOfLikes"
}
所以我有我要使用的初始结构和第二个结构，我不希望它在文件范围之外可见......事情是，它说 Photo DatabaseTableNames 结构的属性，需要声明为 fileprivate 因为 PhotoTable 是 private...
我在这里做错了什么？
最佳答案
关键是嵌套 PhotoTable 并使其属性静态化。
struct DatabaseTableNames {
struct PhotoTable {
static let lowQuality = "lowQuality"
static let highQuality = "highQuality"
static let numberOfLikes = "numberOfLikes"
}
}
使用示例:
let test = DatabaseTableNames.PhotoTable.lowQuality
print(test)
关于Swift - 如何声明私有(private)嵌套结构？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41990222/