"C++ Primer (5th Edition)" program redirection problem

1. The redirect method mentioned in the book

2. Problems in actual use

• In Windows PowerShell, .\项目1.exe < .\data.txtredirecting according to the method mentioned in the book will report an error:

所在位置 行:1 字符: 11
+ .\项目1.exe < .\data.txt
+           ~
“<”运算符是为将来使用而保留的。
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : RedirectionNotSupported

3. Ways to solve the problem

• Refer to the blogger's answer: https://blog.csdn.net/fjjaylz/article/details/86663013
• If you only input, use the following command:
  Get-Content .\data.txt | .\项目1.exe
• If only output, use the following command:
  .\项目1.exe | tee out.txt
• For both input redirection and output redirection, use the following command:
  Get-Content .\data.txt | .\项目1.exe | tee out.txt