C# Winform 开发中使用到了开源控件 CefSharp，用于模拟浏览器操作，目标网站需要登录，Cef中有专门的Cookie管理接口，即ICookieManager，设置Cookie的方法在接口中的定义如下：

//
// 摘要:
// Sets a cookie given a valid URL and explicit user-provided cookie attributes.
// This function expects each attribute to be well-formed. It will check for
// disallowed characters (e.g. the ‘;’ character is disallowed within the cookie
// value attribute) and will return false without setting the cookie if such
// characters are found.
//
// 参数:
// url:
// The cookie URL
//
// cookie:
// The cookie
Task<bool> SetCookieAsync(string url, Cookie cookie);

以下是CefSharp设置Url Cookie 的具体使用方法：

public static void SetCefCookies(string url, CookieCollection cookies)
{
Cef.GetGlobalCookieManager().SetStoragePath(Environment.CurrentDirectory, true);
foreach (System.Net.Cookie c in cookies)
{
var cookie = new CefSharp.Cookie
{
Creation = DateTime.Now,
Domain = c.Domain,
Name = c.Name,
Value = c.Value,
Expires = c.Expires
};
Task<bool> task = Cef.GetGlobalCookieManager().SetCookieAsync(url, cookie);

while (!task.IsCompleted)
{
continue;
}
bool b = task.Result;
}
}