一个功能十分强大的 邮件类，无需依赖 mail() 函数，通过fopen 系列函数实现，并提供 额外功能，如 携带附件，stmp 验证等。注意：是 rar 格式压缩-a function of a very strong class mail, without relying on mail () function, series by fopen function to achieve, and to provide additional features, such as carrying annex, stmp certification. Attention : rar compressed format