arrays - 打印变量时出现 lldb_expr 错误

Question

在下面的代码中，因为我在 Playground 中打印“aMovie.movi​​esGenere”时遇到错误:

struct Movie: Codable {
    enum MovieGenere: String, Codable {
        case horror, skifi, comedy, adventure, animation
    }

    var name : String
    var moviesGenere : [MovieGenere]
    var rating : Int
}

let aMovie = Movie(name: "Up", moviesGenere: [.comedy , .adventure, .animation], rating : 4)

print(aMovie.moviesGenere)

错误:

[__lldb_expr_98.Movie.MovieGenere.comedy, __lldb_expr_98.Movie.MovieGenere.adventure, __lldb_expr_98.Movie.MovieGenere.animation]

Answer 1

这不是错误，而是低级调试器以及 Playground 如何打印出您的枚举。如果你把它分解，你会看到:

[
__lldb_expr_98.Movie.MovieGenere.comedy,
__lldb_expr_98.Movie.MovieGenere.adventure,
__lldb_expr_98.Movie.MovieGenere.animation
]