在Swift 4中解码小写和大写的JSON密钥

struct MyStruct: Codable {
    let myProperty: String
    
    enum CodingKeys: String, CodingKey {
        case myProperty = "my_property"
    }
}

let jsonString = """
{
    "my_property": "Hello World"
}
"""

let jsonData = jsonString.data(using: .utf8)!

do {
    let decodedObject = try JSONDecoder().decode(MyStruct.self, from: jsonData)
    print(decodedObject.myProperty) // 输出: Hello World
} catch {
    print("解码失败: \(error)")
}