/// <summary>
/// 添加文本内容
/// </summary>
/// <param name="httpContent"></param>
/// <param name="keyValues">键值对</param>
public static void AddText(this MultipartContent httpContent, IEnumerable <KeyValuePair <string, string> > keyValues)
{
foreach (var kv in keyValues)
{
httpContent.AddText(kv.Key, kv.Value);
}
}
