Newtonsoft.Json 通过 JObject 读取 json对像 超简单

                        /*   json 格式的字符串解析 格式化
                        {
                            "input": {
                                "size": 193156,
                                "type": "image/png"
                            },
                            "output": {
                                "size": 59646,
                                "type": "image/png",
                                "width": 487,
                                "height": 284,
                                "ratio": 0.3088,
                                "url": "https://api.tinify.com/output/hrqtghqtv0ab4qgv.png"
                            }
                        }
                        */

                        // json解析  嵌套格式
                        Newtonsoft.Json.Linq.JObject jobject = (Newtonsoft.Json.Linq.JObject)Newtonsoft.Json.JsonConvert.DeserializeObject(jsonText);

                        decimal input_size = Convert.ToDecimal(jobject["input"]["size"]);//193156, 输入图片大小
                        string input_type = jobject["input"]["type"].ToString();// "image/png"，输入图片类型

                        decimal output_size = Convert.ToDecimal(jobject["output"]["size"]);// 59646, 图片大小
                        string output_type = jobject["output"]["type"].ToString();//"image/png", 图片类型
                        string output_width = jobject["output"]["width"].ToString();//487, 宽度
                        string output_height = jobject["output"]["height"].ToString();//284, 高度
                        string output_ratio = jobject["output"]["ratio"].ToString();//0.3088, 压缩率=Convert.ToString((1-0.3088)*100)+"%";
                        string output_url = jobject["output"]["url"].ToString();//"https://api.tinify.com/output/hrqtghqtv0ab4qgv.png"

                        WebEnh.Core.Net.HttpProc.WebClient wc = new WebEnh.Core.Net.HttpProc.WebClient();
                        wc.DownloadFile(output_url, download_filename);