错误消息：未为字符串“”定义运算符“”，并键入“Dictionary（Of string，Object）”

Question

尝试反序列化JSON对象时收到此错误消息

错误消息

操作符未为字符串“JPY：”定义，并且键入字典（Of String， Object）。

下面是我试图反序列化的json对象

{"JPY"：{"7d"："6510.92"，"30d"："4434.76"，"24h"："7027.46"}，"USD"：{"7d"："65.09"，"30d"："48.77"，"24h"："74.26"}，"AUD"：{"7d"："64.99"，"30d"："49.10"，"24h"："71.91"}，"CHF"：{"7d"："66.86"，"30d"："58.14"，"24h"："69.57"}，"RUB"：{"7d"："1896.79"，"30d"："1472.11"，"24h"："2206.51"}，"时间戳"： 1364257203，"THB"：{"30d"："1100.31"}，"CNY"：{"7d"："417.58""："16719.16"，"30d"："11865.62"，"24h"："19185.45"}，"DKK"：{"7d"："388.47"，"30d"："350.27"，"24h"："436.34"}，"BRL"：{"7d"："166.21"，"30d"："106.56"，"24h"："182.34"}，"ILS"：{"7d"："236.79"，"30d"："218.19"，"24h"："259.00"}，"GBP"：{"7d"："44.16"，"30d"："31.73"，"24h"："49.22"}，"NZD"：{"7d"："80.21"，"30d"："59.29"，"24h"："88.60"}，"PLN"：{"7d"："218{"7d"："68.76"，"30d"："50.16"，"24h"："76.43"}，"SEK"：{"7d"："445.63"，"30d"："315.11"，"24h"："510.58"}，"SGD"：{"7d"："87.88"，"30d"："61.97"，"24h"："93.35"}，"HKD"：{"7d"："550.10"，"30d"："396.68"，"24h"："571.82"}，"EUR"：{"7d"："51.85"，"30d"："38.65"，"24h"："58.69"}}

这是我的代码

Dim js As New System.Web.Script.Serialization.JavaScriptSerializer
    Dim testObj = js.Deserialize(rt, New Object().GetType())

    out = "JPY: " + testObj("JPY") + Environment.NewLine
    out += "7days: " + testObj("7d") + Environment.NewLine
    out += "30days: " + testObj("30d") + Environment.NewLine
    out += "24hours: " + testObj("24h")

Answer 1

请使用调试器，它可以显示反序列化对象的外观。这是一本字典字典，相当于VB。NET声明将是Dictionary（字符串的），Dictionary（字符串的，字符串的）。这就是正确的代码：

    Dim currency = testObj("JPY")
    out = "JPY: " + Environment.NewLine
    out += "7days: " + currency("7d") + Environment.NewLine
    out += "30days: " + currency("30d") + Environment.NewLine
    out += "24hours: " + currency("24h")