该
JscriptTypeInfo对象有点不幸：它包含所有相关信息（如您在“ 监视” 窗口中看到的那样），但似乎无法使用VBA来实现。
如果
JscriptTypeInfo实例引用Javascript对象，
For Each ...Next将无法正常工作。但是，如果它引用Javascript数组，则它确实可以工作（请参见
GetKeys下面的函数）。
因此，解决方法是再次使用Javascript引擎获取VBA无法提供的信息。首先，有一个函数可以获取Javascript对象的键。
知道键后，下一个问题就是访问属性。如果仅在运行时知道密钥名称，则VBA也不会有帮助。因此，有两种方法可以访问对象的属性，一种用于值，另一种用于对象和数组。
Option ExplicitPrivate scriptEngine As scriptControlPublic Sub InitscriptEngine() Set scriptEngine = New scriptControl scriptEngine.Language = "Jscript" scriptEngine.AddCode "function getProperty(jsonObj, propertyName) { return jsonObj[propertyName]; } " scriptEngine.AddCode "function getKeys(jsonObj) { var keys = new Array(); for (var i in jsonObj) { keys.push(i); } return keys; } "End SubPublic Function DepreJsonString(ByVal JsonString As String) Set DepreJsonString = scriptEngine.eval("(" + JsonString + ")")End FunctionPublic Function GetProperty(ByVal JsonObject As Object, ByVal propertyName As String) As Variant GetProperty = scriptEngine.Run("getProperty", JsonObject, propertyName)End FunctionPublic Function GetObjectProperty(ByVal JsonObject As Object, ByVal propertyName As String) As Object Set GetObjectProperty = scriptEngine.Run("getProperty", JsonObject, propertyName)End FunctionPublic Function GetKeys(ByVal JsonObject As Object) As String() Dim Length As Integer Dim KeysArray() As String Dim KeysObject As Object Dim Index As Integer Dim Key As Variant Set KeysObject = scriptEngine.Run("getKeys", JsonObject) Length = GetProperty(KeysObject, "length") ReDim KeysArray(Length - 1) Index = 0 For Each Key In KeysObject KeysArray(Index) = Key Index = Index + 1 Next GetKeys = KeysArrayEnd FunctionPublic Sub TestJsonAccess() Dim JsonString As String Dim JsonObject As Object Dim Keys() As String Dim Value As Variant Dim j As Variant InitscriptEngine JsonString = "{""key1"": ""val1"", ""key2"": { ""key3"": ""val3"" } }" Set JsonObject = DepreJsonString(CStr(JsonString)) Keys = GetKeys(JsonObject) Value = GetProperty(JsonObject, "key1") Set Value = GetObjectProperty(JsonObject, "key2")End Sub注意：
- 该代码使用早期绑定。因此，您必须添加对“ Microsoft script Control 1.0”的引用。
InitscriptEngine
在使用其他功能进行一些基本初始化之前，您必须调用一次。
