в чем разница использования public new void hello() и public void hello()
если результат один и тот же для обоих, я понимаю, что правильно использовать с new, но меня интересует почему мы так делаем?
Посоветовали смотреть в сторону C#, если хочу работать только с Windows.
В тоже время в С++ шаблоны "размножаются" в коде.
Есть ли смысл изучать его ради маленьких в пару страниц сайтов (но всё же серверным функционалом, не просто "отдать html по ссылке")?
Какие у него есть киллер-фичи, облегчающие жизнь?
я слегка пересрался от вида "пустого проекта asp net" в visual studio.
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
Host.CreateDefaultBuilder(args)
.ConfigureWebHost(webBuilder =>
{
webBuilder.UseKestrel(o =>
{
o.ListenLocalhost(5000);
});
webBuilder.ConfigureServices(services =>
{
services.AddRouting();
});
webBuilder.Configure(app =>
{
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapGet("/", async context =>
{
await context.Response.WriteAsync("Hello World!");
});
});
});
})
.Build()
.Run();var app = WebApplication.Create(args);
app.MapGet("/", string () => "Hello World!");
app.Run();#r "nuget:Newtonsoft.Json/13.0.1"
var guids = Newtonsoft.Json.JsonConvert.DeserializeObject<Guid[]>("[]").Dump();
var guids2 = System.Text.Json.JsonSerializer.Deserialize<Guid[]>("[]").Dump();public static class Rarity {
public static Color Rare {get;} = new Color(255,255,255)
}в коде происходит полный выход из метода UploadPhotos(), хотя у меня там еще приличная часть кода должна исполниться. Прыжок происходит как в пошаговом так и в обычном режиме.
File.OpenWrite(PathForSavePhotos + "/" + dataExcelTabel[i].codeProduct + "." + splitFileName[splitFileName.Length - 1]);.Close(); используй using
{
"status": {
"timestamp": "2021-06-28T05:54:55.250Z",
"error_code": 0,
"elapsed": 28,
"credit_count": 1,
"total_count": 5475
},
"data": [
{
"id": 1,
"name": "Bitcoin",
"symbol": "BTC",
"slug": "bitcoin",
"num_market_pairs": 9210,
"date_added": "2013-04-28T00:00:00.000Z",
"tags": [
"mineable",
"pow",
"sha-256",
"store-of-value",
"state-channels",
"coinbase-ventures-portfolio",
"three-arrows-capital-portfolio",
"polychain-capital-portfolio",
"binance-labs-portfolio",
"arrington-xrp-capital",
"blockchain-capital-portfolio",
"boostvc-portfolio",
"cms-holdings-portfolio",
"dcg-portfolio",
"dragonfly-capital-portfolio",
"electric-capital-portfolio",
"fabric-ventures-portfolio",
"framework-ventures",
"galaxy-digital-portfolio",
"huobi-capital",
"alameda-research-portfolio",
"a16z-portfolio",
"1confirmation-portfolio",
"winklevoss-capital",
"usv-portfolio",
"placeholder-ventures-portfolio",
"pantera-capital-portfolio",
"multicoin-capital-portfolio",
"paradigm-xzy-screener"
],
"max_supply": 21000000,
"circulating_supply": 18743737,
"total_supply": 18743737,
"cmc_rank": 1,
"last_updated": "2021-06-28T05:54:02.000Z",
"quote": {
"USD": {
"price": 34489.91295375669,
"volume_24h": 33231566302.9618,
"percent_change_1h": 0.24623143,
"percent_change_24h": 4.72866241,
"percent_change_7d": 0.0385825,
"percent_change_30d": -6.57806083,
"percent_change_60d": -36.08177402,
"percent_change_90d": -40.16259997,
"market_cap": 646469857558.1086,
"last_updated": "2021-06-28T05:54:02.000Z"
}
}
},
{
"id": 1027,
"name": "Ethereum",
"symbol": "ETH",
"slug": "ethereum",
"num_market_pairs": 6005,
"date_added": "2015-08-07T00:00:00.000Z",
"tags": [
"mineable",
"pow",
"smart-contracts",
"ethereum",
"coinbase-ventures-portfolio",
"three-arrows-capital-portfolio",
"polychain-capital-portfolio",
"binance-labs-portfolio",
"arrington-xrp-capital",
"blockchain-capital-portfolio",
"boostvc-portfolio",
"cms-holdings-portfolio",
"dcg-portfolio",
"dragonfly-capital-portfolio",
"electric-capital-portfolio",
"fabric-ventures-portfolio",
"framework-ventures",
"hashkey-capital-portfolio",
"kinetic-capital",
"huobi-capital",
"alameda-research-portfolio",
"a16z-portfolio",
"1confirmation-portfolio",
"winklevoss-capital",
"usv-portfolio",
"placeholder-ventures-portfolio",
"pantera-capital-portfolio",
"multicoin-capital-portfolio",
"paradigm-xzy-screener"
],
"circulating_supply": 116469137.499,
"total_supply": 116469137.499,
"cmc_rank": 2,
"last_updated": "2021-06-28T05:54:02.000Z",
"quote": {
"USD": {
"price": 1972.9974245462824,
"volume_24h": 19489435867.08539,
"percent_change_1h": -0.03164063,
"percent_change_24h": 5.36554092,
"percent_change_7d": -7.36312666,
"percent_change_30d": -22.4570674,
"percent_change_60d": -27.41396336,
"percent_change_90d": 9.21290472,
"market_cap": 229793308324.65384,
"last_updated": "2021-06-28T05:54:02.000Z"
}
}
},
{
"id": 825,
"name": "Tether",
"symbol": "USDT",
"slug": "tether",
"num_market_pairs": 13711,
"date_added": "2015-02-25T00:00:00.000Z",
"tags": [
"payments",
"stablecoin",
"stablecoin-asset-backed",
"solana-ecosystem"
],
"circulating_supply": 62534142511.11169,
"total_supply": 64471767616.826355,
"platform": {
"id": 1027,
"name": "Ethereum",
"symbol": "ETH",
"slug": "ethereum",
"token_address": "0xdac17f958d2ee523a2206206994597c13d831ec7"
},
"cmc_rank": 3,
"last_updated": "2021-06-28T05:53:08.000Z",
"quote": {
"USD": {
"price": 1.00023604778902,
"volume_24h": 50665651395.52314,
"percent_change_1h": -0.00327685,
"percent_change_24h": -0.11177658,
"percent_change_7d": -0.14175554,
"percent_change_30d": -0.07861614,
"percent_change_60d": 0.01010439,
"percent_change_90d": -0.01064075,
"market_cap": 62548903557.1897,
"last_updated": "2021-06-28T05:53:08.000Z"
}
}
},
{
"id": 1839,
"name": "Binance Coin",
"symbol": "BNB",
"slug": "binance-coin",
"num_market_pairs": 570,
"date_added": "2017-07-25T00:00:00.000Z",
"tags": [
"marketplace",
"centralized-exchange",
"payments",
"binance-smart-chain",
"alameda-research-portfolio",
"multicoin-capital-portfolio"
]
}
]
}using System.Text.Json;
using System.Text.Json.Serialization;
public class Status
{
[JsonPropertyName("timestamp")]
public DateTime Timestamp { get; set; }
[JsonPropertyName("error_code")]
public int ErrorCode { get; set; }
[JsonPropertyName("elapsed")]
public int Elapsed { get; set; }
[JsonPropertyName("credit_count")]
public int CreditCount { get; set; }
[JsonPropertyName("total_count")]
public int TotalCount { get; set; }
}
public class QuoteForCurrency
{
[JsonPropertyName("price")]
public decimal Price { get; set; }
[JsonPropertyName("volume_24h")]
public decimal Volume24h { get; set; }
[JsonPropertyName("percent_change_1h")]
public decimal PercentChange1h { get; set; }
[JsonPropertyName("percent_change_24h")]
public decimal PercentChange24h { get; set; }
[JsonPropertyName("percent_change_7d")]
public decimal PercentChange7d { get; set; }
[JsonPropertyName("percent_change_30d")]
public decimal PercentChange30d { get; set; }
[JsonPropertyName("percent_change_60d")]
public decimal PercentChange60d { get; set; }
[JsonPropertyName("percent_change_90d")]
public decimal PercentChange90d { get; set; }
[JsonPropertyName("market_cap")]
public decimal MarketCap { get; set; }
[JsonPropertyName("last_updated")]
public DateTime LastUpdated { get; set; }
}
public class Platform
{
[JsonPropertyName("id")]
public int Id { get; set; }
[JsonPropertyName("name")]
public string Name { get; set; }
[JsonPropertyName("symbol")]
public string Symbol { get; set; }
[JsonPropertyName("slug")]
public string Slug { get; set; }
[JsonPropertyName("token_address")]
public string TokenAddress { get; set; }
}
public class Item
{
[JsonPropertyName("id")]
public int Id { get; set; }
[JsonPropertyName("name")]
public string Name { get; set; }
[JsonPropertyName("symbol")]
public string Symbol { get; set; }
[JsonPropertyName("slug")]
public string Slug { get; set; }
[JsonPropertyName("num_market_pairs")]
public int NumMarketPairs { get; set; }
[JsonPropertyName("date_added")]
public DateTime DateAdded { get; set; }
[JsonPropertyName("tags")]
public List<string> Tags { get; set; }
[JsonPropertyName("max_supply")]
public int MaxSupply { get; set; }
[JsonPropertyName("circulating_supply")]
public decimal CirculatingSupply { get; set; }
[JsonPropertyName("total_supply")]
public decimal TotalSupply { get; set; }
[JsonPropertyName("cmc_rank")]
public int CmcRank { get; set; }
[JsonPropertyName("last_updated")]
public DateTime LastUpdated { get; set; }
[JsonPropertyName("quote")]
public Dictionary<string, QuoteForCurrency> Quote { get; set; }
[JsonPropertyName("platform")]
public Platform Platform { get; set; }
}
public class Response
{
[JsonPropertyName("status")]
public Status Status { get; set; }
[JsonPropertyName("data")]
public List<Item> Data { get; set; }
}var json = "{}"; // тут твой ответ json из ответа
var responseData = JsonSerializer.Deserialize<Response>(json);какая претензия у компилятора?