如何检查JSON字符串中是否存在特定密钥

Question

我有以下json字符串数据作为输入：

string json="{"-1":0,"78":6,"79":6,"80":2,"81":16777215,"82":16777215,"83":1,"84":0,"85":0,"86":"2023/05/07","87":0,"88":0,"89":1,"90":1,"124":1,"16":5,"17":null,"18":null,"19":0,"20":2,"21":2000,"22":0,"23":0,"24":0,"25":0,"26":0,"109":0,"110":0,"29":0,"30":0,"31":0,"32":2000,"33":13710,"34":15710,"135":null}"

我想检查是否有任何键具有-1，以便它可以返回true或false。如何在C＃中实现呢？我无法使用JSONobject命名空间。

Answer 1

您可以使用JavaSerializer或JSON.Net程序集解析Script组件内的JSON字符串，然后搜索键值。

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如果JSON数据是形式化的且仅包含键和值，则可以搜索以下字符串"-1":，如果找到，则找到-1键。

if(json.contains("\"-1\":")){

//key found

}else{

// key not found

}