$aa ="Kevin"",bb,"",wwww"""
$bb=@()
$bb=$bb+$aa
$bb=$bb+$aa
$bb=$bb+$aa
$bb|ConvertFrom-Csv
#|Export-Csv "C:\Users\yuyuyu\Documents\20240112_dict\bbb.csv" -NoTypeInformation
$aa ="Kevin"",bb,"",wwww"""
$bb=@()
$bb=$bb+$aa
$bb=$bb+$aa
$bb=$bb+$aa
$bb|ConvertFrom-Csv
#|Export-Csv "C:\Users\yuyuyu\Documents\20240112_dict\bbb.csv" -NoTypeInformation