/// <summary>
/// 过滤表单项首尾空格，并转换成半角
/// </summary>
/// <param name="form"></param>
/// <returns></returns>
public static NameValueCollection Trims(NameValueCollection form)
{
var after = new NameValueCollection();
foreach (string key in form.AllKeys)
{
after[key] = FormsVerify.ToDBC(form[key].Trim());
}
return(after);
}
