variables - 发送邮件消息失败，因为附件丢失(变量变乱)

Question

我正在使用Send-MailMessage发送一堆文件作为附件
有些文件存在，有些不存在，因此，如果缺少其中一个文件，则Send-MailMessage失败。

如果文件丢失，有什么办法可以处理Test-Path并清理$attachments？

我的代码:

$Attachments = "$longlist_file","$PingList_File","$quicklist_file", `
  "$nConf_import_host_file","$nConf_import_service_file", `
  "$nconf_export_host_file","$nconf_export_service_file"

# Sending mail
send-mailmessage -to $ToAddress -from $FromAddress -smtpserver $SMTPServer `
  -subject $MessageSubject -Body $MessageBody -Attachments $Attachments

Answer 1

大概

$Attachments = $longlist_file","$PingList_File","$quicklist_file", `
  "$nConf_import_host_file", "$nConf_import_service_file", `
  "$nconf_export_host_file", "$nconf_export_service_file" `
  | Where-Object { Test-Path $_ }