// 将用户添加到黑名单
List<string> param = new List<string>
  {
    "user_id"
  };
TIMResult res = TencentIMSDK.FriendshipAddToBlackList(param, (int code, string desc, List<FriendResult> result, string user_data)=>{
 // 处理异步逻辑
});


// 将用户从黑名单中移除
List<string> param = new List<string>
  {
    "user_id"
  };
TIMResult res = TencentIMSDK.FriendshipDeleteFromBlackList(param, (int code, string desc, List<FriendResult> result, string user_data)=>{
 // 处理异步逻辑
});

// 获取黑名单列表
TIMResult res = TencentIMSDK.FriendshipGetBlackList((int code, string desc, List<FriendProfile> result, string user_data)=>{
 // 处理异步逻辑
});