json - 如何在json swift中解析时保持原始 double 值？

Question

我从服务器收到以下响应

"transactionInfo": {
      "currencyCode": "MYR",
      "total": 472.23,
      "roomCurrencyCode": "MYR",
      "roomTotal": 472.23
}

但是当我尝试使用 SwiftyJson 进行转换并使用以下代码进行映射时

struct TransactionInfoModel: Codable {
   var currencyCode: String
   var total: Double
   var roomCurrencyCode: String
   var roomTotal: Double
}

然后我得到如下值:

"currencyCode": "MYR",
"total": 472.23000000000002,
"roomCurrencyCode": "MYR",
"roomTotal": 472.23000000000002

请建议如何解决此问题。提前致谢。

Answer 1

Swift 使用 IEEE 754 标准来表示单精度和 double 。

swift: issue in converting string to double Marting has answered clearly your question.