swift 中 [String: AnyObject] 中带双引号的浮点值 returns

Question

我不知道为什么我使用[String: AnyObject]时浮点值总是带有双引号。你们有什么方法可以让我得到正确的结果吗？

let appliedLoyalty: Float = 1.05
let appliedWallet: Float = 0.55

let payLoad: [String: AnyObject] = ["custid": custid! as AnyObject, "discounts": ["loyalty": appliedLoyalty,"wallet": appliedWallet] as AnyObject] // custid is string value

print(payLoad)

当我打印 payLoad 时，浮点值用双引号引起来。

["discounts": {
    "loyalty" = "1.05";
    "wallet" = "0.45";
}, "custid": "puma"]

Answer 1

当您使用 print(payLoad) 时，将调用词典的 description 方法。 description 方法的实现与控制台上打印的相同。您应该使用 JSONSerialization 来查看实际的 json，而不是打印字典。使用下面的代码或使用断点来检查 payLoad

中存储的内容

let jsonData = try? JSONSerialization.data(withJSONObject: payLoad, options: .prettyPrinted)
let jsonStr = String(data: jsonData!, encoding: .utf8)
print(jsonStr!)

Answer 2

将 AnyObject 替换为 Any，如下所示：

let appliedLoyalty: Float = 1.05
let appliedWallet: Float = 0.55
let custID = "puma"
let payLoad: [String: Any] = ["custid": custID, "discounts": ["loyalty": appliedLoyalty,"wallet": appliedWallet]] // custid is string value

print(payLoad)

swift 中 [String: AnyObject] 中带双引号的浮点值 returns

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