# 图像内容审核（V3）
1. 本章节对图像内容审核AK/SK方式使用SDK进行示例说明。 示例代码中可以修改ImageDetectionReq的Image或Url配置待审核图像信息（image和url参数二选一），示例中以url为例配置完成后运行即可。
   服务所在的应用区域和终端节点，详情请查看 [地区和终端节点](https://developer.huaweicloud.com/endpoint?Moderation) 。
   ```
   using System;
   using System.Collections.Generic;
   using HuaweiCloud.SDK.Core;
   using HuaweiCloud.SDK.Core.Auth;
   using HuaweiCloud.SDK.Moderation;
   using HuaweiCloud.SDK.Moderation.V3;
   using HuaweiCloud.SDK.Moderation.V3.Model;
    
   namespace CheckImageModerationSolution
   {
       class Program
       {
           static void Main(string[] args)
           {
          //认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全
         //本示例以ak和sk保存在环境变量中来实现身份验证为例，运行本示例前请先在本地环境中设置环境变量HUAWEICLOUD_SDK_AK和HUAWEICLOUD_SDK_SK  
           string ak= Environment.GetEnvironmentVariable("HUAWEICLOUD_SDK_AK", EnvironmentVariableTarget.Machine);
           string sk= Environment.GetEnvironmentVariable("HUAWEICLOUD_SDK_SK", EnvironmentVariableTarget.Machine);
               const string projectId = "project_id";
               var config = HttpConfig.GetDefaultConfig();
               config.IgnoreSslVerification = true;
               var auth = new BasicCredentials(ak, sk, projectId);
    
               var client = ModerationClient.NewBuilder()
                       .WithCredential(auth)
                       .WithRegion(ModerationRegion.ValueOf("xxx"))  //把xxx替换成服务所在的区域，例如北京四：cn-north-4。
                       .WithHttpConfig(config)
                       .Build();
    
               var req = new CheckImageModerationRequest
               {
               };
               List<string> listCategoriesbody = new List<string>();
               listCategoriesbody.Add("porn");
               req.Body = new ImageDetectionReq()
               {
                   Url = "http://www.xxxx.xxxx",
                   Categories = listCategoriesbody,
                   EventType = "head_image"
               };
    
               try
               {
                   var resp = client.CheckImageModeration(req);
                   var respStatusCode = resp.HttpStatusCode;
                   Console.WriteLine(respStatusCode);
                     Console.WriteLine(resp);
               }
               catch (RequestTimeoutException requestTimeoutException)
               {
                   Console.WriteLine(requestTimeoutException.ErrorMessage);
               }
               catch (ServiceResponseException clientRequestException)
               {
                   Console.WriteLine(clientRequestException.HttpStatusCode);
                   Console.WriteLine(clientRequestException.ErrorCode);
                   Console.WriteLine(clientRequestException.ErrorMsg);
               }
               catch (ConnectionException connectionException)
               {
                   Console.WriteLine(connectionException.ErrorMessage);
               }
           }
       }
   }
   ```
   
2. 控制台输出200即表示程序执行成功，[图像内容审核结果](https://support.huaweicloud.com/api-moderation/moderation_03_0086.html#section4)输出到控制台。
   ```
   200
    {"request_id": "69b424920668cb15e6d25eef879a023b", "result": {"suggestion": "block", "category": "image_text", "details": [{"suggestion": "block", "category": "image_text", "confidence": 1.0, "qr_location": {"top_left_x": 74, "top_left_y": 66, "bottom_right_x": 151, "bottom_right_y": 142}, "qr_content": "http://xxxxxx/xxxxx", "label": "qr_code"}, {"suggestion": "block", "category": "image_text", "confidence": 0.98779297, "label": "ad"}, {"suggestion": "block", "category": "image_text", "confidence": 1.0, "label": "qr_code"}], "ocr_text": "xxxxxxxxx"}}
   ```