有特殊字符，就会收不到

[a22124497]

echotool.exe 127.0.0.1 /p udp /r 4578 /d "123!@#$"

含有特殊字符，就收不到消息，只会提示有
10:36:13 from 127.0.0.1:49736 received [123]
10:36:13 from 127.0.0.1:49737 received [123]
10:36:22 from 127.0.0.1:49738 received [UDP echo from xiaoss]
10:36:22 from 127.0.0.1:49739 received [UDP echo from xiaoss]