public void ParseTest()
{
var name = "Weixing";
var address = "*****@*****.**";
var str = $"{name}<{address}>";
var a = MailAddress.Parse(address);
Assert.IsNull(a.Name);
Assert.AreEqual(address, a.Address);
var b = MailAddress.Parse(str);
Assert.AreEqual(name, b.Name);
Assert.AreEqual(address, b.Address);
}