pb9.0中调用方式全局外部函数（确保dll在软件根目录）FUNCTIONlongmessageaa(stringxxx)LIBRARY"message.dll"FUNCTIONlongsendit(stringserver,stringuser,stringpassword,stringzt,stringzw,stringjsr,stringfxr)LIBRARY"message.dll"sendit返回值0成功-1连接失败-2发送失败参数说明serversmtp服务器地址user登陆用户password登陆密码zt主题，zw正文，js