如果你想跳过任何一行有一个“空单元格”，我会跳过你试图做一行的部分：

@'
A, B, C
1, 2, 3
1,  , 3
 , 2,
1, 2, 3
'@ | ConvertFrom-Csv | ForEach-Object { $properties = $null } {
    # for the first object to process
    if (-not $properties) {
        # get the properties (Columns of the CSV)
        $properties = $_.PSObject.Properties.Name
    }

    foreach ($property in $properties) {
        if ([string]::IsNullOrWhiteSpace($_.$property)) {
            return # skip this row
        }
    }
    # else, output it
    $_
}

如果你想用Where-Object来做，这会使它更难阅读，你可以使用Enumerable.Any：

@'
foo, bar, baz
1, 2, 3
1,  , 3
 , 2,
1, 2, 3
'@ | ConvertFrom-Csv | Where-Object {
    -not [System.Linq.Enumerable]::Any(
        $_.PSObject.Properties.Value,
        [Func[object, bool]] { [string]::IsNullOrWhiteSpace($args[0]) })
}