c# 原生2captcha图片打码实现

封装函数
public static async Task captcha2(string VImage, int checkt = 0)
{
var secretKey = "b8*************"; //KEY
var url = "https://2captcha.com/in.php?key=" + secretKey;
var res = "";
using (HttpClient client = new HttpClient())
{
var content = new MultipartFormDataContent("Upload----" + DateTime.Now.ToString(CultureInfo.InvariantCulture));

content.Add(new StringContent(VImage), "body"); //BASE64图片，不包括data:image/png;base64,
content.Add(new StringContent("base64"), "method"); //BASE64图片
content.Add(new StringContent("en"), "lang"); //英文打码
content.Add(new StringContent("10"), "max_len"); //最大长度
content.Add(new StringContent("Choose a correct word or calculation"), "textinstructions"); //备注给打码人员看
content.Add(new StringContent("4497"), "soft_id"); //开发者ID 更多参数见 https://2captcha.com/2captcha-api

var response = await client.PostAsync(url, content);
var stringResponse = await response.Content.ReadAsStringAsync();
stringResponse = stringResponse.ToString();
if (stringResponse.Contains("OK|"))
{
var resid = stringResponse.Replace("OK|", "").Trim();

url = "https://2captcha.com/res.php?key=" + secretKey + "&action=get&id=" + resid;

//获取结果
for (int k = 0; k < 10; k++)
{
string jsonStr = Main.GetHtml(url);//url
if (jsonStr.Contains("ERROR_"))
{ //验证码识别失败
res = "ERROR";
break;
}else if (jsonStr.Contains("OK|"))
{ //正确返回
res = jsonStr.Replace("OK|", "").Trim();
break;
}
else if (jsonStr.Contains("CAPCHA_NOT_READY"))
{ //正在识别中......
Delay(6000);
}
}

if(res == "")
{
res = "ERROR";
}
}
else
{
res = "ERROR";
}

}

Console.WriteLine(res);

return res;
}
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c# 原生2captcha图片打码实现

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