求翻译:JSONObject["appendix"] is not a number.是什么意思?待解决 悬赏分:1 - 离问题结束还有 JSONObject["appendix"] is not a number.问题补充:匿名 2013-05-23 12:21:38 JSONObject的[ “附录” ]是不是数字。 匿名 2013-05-23 12:23:18 JSONObject [“附录”]不是数字。 匿名 2013-...
ClassCastException- if the value to which the specified name is mapped is not assignable to JsonNumber type getJsonString JsonStringgetJsonString(Stringname) Returns the string value to which the specified name is mapped. This is a convenience method for(JsonString)get(name)to get the value....
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getNumber public Number getNumber(String key) Get the Number value with the specified key Parameters: key - the key to return the value for Returns: the value or null if no value for that key Throws: ClassCastException - if the value is not a Number getInteger public Integer getInt...
id value = jsonDict[@"nonExistentKey"]; if (value == nil) { NSLog(@"Key does not exist"); } 通过以上步骤和方法,可以有效地使用 NSDictionary 来处理和检索 JSON 数据。 相关搜索: 从NSDictionary检索数据 从JSONObject获取JSONArray中的JSONObject数据 在NSDictionary中从plist中获取数据 使用javascript...
Models a JSON Object. Extension of HashMap that only allows String keys, and values which are JSON-able. JSON-able values are: null, and instances of String, Boolean, Number, JSONObject and JSONArray. Instances of this class are not thread-safe. ...
Get an optional JSONObject associated with a key. long optLong(String key) Get an optional long value associated with a key, or zero if there is no such key or if the value is not a number. long optLong(String key, long defaultValue) Get an optional long value associated with a ...
object has no mapping forname, this inserts a new mapping. If the mapping exists but its value is not an array, the existing and new values are inserted in order into a new array which is itself mapped toname. In aggregate, this allows values to be added to a mapping one at a time...
bool isNumber() //number值判定,Json内使用double型别存储number值 bool isTrue() //true值判定 bool isFalse() //...
Get an optional JSONArray associated with a key. JSONObject optJSONObject(String key) Get an optional JSONObject associated with a key. long optLong(String key) Get an optional long value associated with a key, or zero if there is no such key or if the value is not a number. long...