PowerShell嵌套foreach循环处理哈希表生成正确HTML标记问题

现有一个不可修改的有序哈希表数据结构，尝试用foreach循环解析生成类HTML标记时，出现了结构错误：子项未被OpenRow/CloseRow包裹、标记不完整等问题。

原错误代码 #

$Data5 = [ordered]@{
    'LocalInfo' = [ordered]@{
        'Date' = '21.12.2024';
        'SysName' = 'Jopa213'
    };
    'Baseboard(1155)' = [ordered]@{
        'Manufacturer' = 'Asus';
        'Model' = 'P5BPro'; 'RAM Slots' = '4'
    };
    'CPU0' = [ordered]@{
        'Name' = 'Intel Core i-5 2500';
        'Cores/Threads' = '4/4';
    };
    'RAM(DDR3)' = [ordered]@{
        'SLOT01' = [ordered]@{
            'Name' = 'DIMM01'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
        'SLOT02' = [ordered]@{
            'Name' = 'DIMM02'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
        'SLOT03' = [ordered]@{
            'Name' = 'DIMM03'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
        'SLOT04' = [ordered]@{
            'Name' = 'DIMM01'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
    }
    'HDD01' = [ordered]@{
        'Bus(Type)' = '(SATA)HDD'; 
        'Name' = 'Toshiba 101'; 
        'Size' = '500 Gb'; 
        'Status' = 'Healty';
    };
    'HDD02' = [ordered]@{
        'Bus(Type)' = '(NVMe)SSD'; 
        'Name' = 'Samsung Evo'; 
        'Size' = '128 Gb'; 
        'Status' = 'Healty';
    };
    'GPUs' = [ordered]@{
        'GPU0' = [ordered]@{
            'Name' = 'nVIDIA Vanta 8Mb'; 
            'RAM' = '1024 Mb';
        };
        'GPU1' = [ordered]@{
            'Name' = 'ATI Radeon RX7'; 
            'RAM' = '2048 Mb';
        };
    };
    'NetCard01' = [ordered]@{
        Name = 'Realtek Jopa Edition 1Gb'; 
        MAC = '00:11:22:33:44:55'
    };
    'NetCard02' = [ordered]@{
        Name = 'Intel Bebra Edition 2Gb'; 
        MAC = '11:44:44:44:55:66'
    };
    'NetConnection01' = [ordered]@{'Name' = 'NetConnection01(Active)'; 
        'MAC' = '11:44:44:44:55:66'; 
        'IPAddress' = '192.168.0.32'; 
        'SubNetMask' = '255.255.255.0'; 
        'Gateway' = '192.168.0.1';
    };
    'NetConnection02' = [ordered]@{'Name' = 'NetConnection01(Active)'; 
        'MAC' = '11:44:44:44:55:66'; 
        'IPAddress' = '192.168.0.32'; 
        'SubNetMask' = '255.255.255.0'; 
        'Gateway' = '192.168.0.1';
    };
    OpertatingSystem = [ordered]@{
        'Name' = 'MacroHard Lindows 10.2'; 
        'Version' = '10.2.1923';
    };
}

$Open = "OpenRow"
$Close = "CloseRow"

foreach ($HashTable in $Data5) {
    foreach ($L1Key in $HashTable.Keys) {
        Write-host $Open $L1Key $Close
        foreach ($L2Key in $HashTable.$L1Key.Keys) {
            IF ($HashTable.$L1Key.$L2Key.GetType() -like "*String*") {
                Write-Host "OpenDiv" $HashTable.$L1Key.$L2Key "CloseDiv" 
            } ELSEIF ($HashTable.$L1Key.$L2Key.GetType() -like "*Dictionary*") { 
                Write-Host "OpenRow"
                foreach ($L3Key in $HashTable.$L1Key.$L2Key.Keys) {
                    Write-Host "OpenDiv" $L3Key "CloseDiv"
                }
                Write-Host "CloseRow"
            }
        }
    }
}

原错误输出示例 #

OpenRow LocalInfo CloseRow
---问题：下方两行未用OpenRow包裹
OpenDiv 21.12.2024 CloseDiv
OpenDiv Jopa213 CloseDiv
---问题：未用CloseRow闭合
OpenRow Baseboard(1155) CloseRow

修正后的代码 #

$Data5 = [ordered]@{
    'LocalInfo' = [ordered]@{
        'Date' = '21.12.2024';
        'SysName' = 'Jopa213'
    };
    'Baseboard(1155)' = [ordered]@{
        'Manufacturer' = 'Asus';
        'Model' = 'P5BPro'; 'RAM Slots' = '4'
    };
    'CPU0' = [ordered]@{
        'Name' = 'Intel Core i-5 2500';
        'Cores/Threads' = '4/4';
    };
    'RAM(DDR3)' = [ordered]@{
        'SLOT01' = [ordered]@{
            'Name' = 'DIMM01'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
        'SLOT02' = [ordered]@{
            'Name' = 'DIMM02'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
        'SLOT03' = [ordered]@{
            'Name' = 'DIMM03'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
        'SLOT04' = [ordered]@{
            'Name' = 'DIMM01'; 
            'Size' = '1024 Mb'; 
            'Speed' = '800 Mhz'
        };
    }
    'HDD01' = [ordered]@{
        'Bus(Type)' = '(SATA)HDD'; 
        'Name' = 'Toshiba 101'; 
        'Size' = '500 Gb'; 
        'Status' = 'Healty';
    };
    'HDD02' = [ordered]@{
        'Bus(Type)' = '(NVMe)SSD'; 
        'Name' = 'Samsung Evo'; 
        'Size' = '128 Gb'; 
        'Status' = 'Healty';
    };
    'GPUs' = [ordered]@{
        'GPU0' = [ordered]@{
            'Name' = 'nVIDIA Vanta 8Mb'; 
            'RAM' = '1024 Mb';
        };
        'GPU1' = [ordered]@{
            'Name' = 'ATI Radeon RX7'; 
            'RAM' = '2048 Mb';
        };
    };
    'NetCard01' = [ordered]@{
        Name = 'Realtek Jopa Edition 1Gb'; 
        MAC = '00:11:22:33:44:55'
    };
    'NetCard02' = [ordered]@{
        Name = 'Intel Bebra Edition 2Gb'; 
        MAC = '11:44:44:44:55:66'
    };
    'NetConnection01' = [ordered]@{'Name' = 'NetConnection01(Active)'; 
        'MAC' = '11:44:44:44:55:66'; 
        'IPAddress' = '192.168.0.32'; 
        'SubNetMask' = '255.255.255.0'; 
        'Gateway' = '192.168.0.1';
    };
    'NetConnection02' = [ordered]@{'Name' = 'NetConnection01(Active)'; 
        'MAC' = '11:44:44:44:55:66'; 
        'IPAddress' = '192.168.0.32'; 
        'SubNetMask' = '255.255.255.0'; 
        'Gateway' = '192.168.0.1';
    };
    OpertatingSystem = [ordered]@{
        'Name' = 'MacroHard Lindows 10.2'; 
        'Version' = '10.2.1923';
    };
}

$Open = "OpenRow"
$Close = "CloseRow"

# 遍历主哈希表的键值对，获取每个分类的名称和对应的子数据
foreach ($mainItem in $Data5.GetEnumerator()) {
    $mainKey = $mainItem.Key
    $subHash = $mainItem.Value

    # 输出主分类行
    Write-Host "$Open $mainKey $Close"

    # 遍历子哈希表的键值对
    foreach ($subItem in $subHash.GetEnumerator()) {
        $subKey = $subItem.Key
        $subValue = $subItem.Value

        if ($subValue -is [string]) {
            # 字符串类型：用OpenRow/CloseRow包裹Div
            Write-Host "$Open"
            Write-Host "OpenDiv $subValue CloseDiv"
            Write-Host "$Close"
        }
        elseif ($subValue -is [System.Collections.IDictionary]) {
            # 字典类型：先输出子分类行，再遍历其内部键值对
            Write-Host "$Open $subKey $Close"
            foreach ($innerItem in $subValue.GetEnumerator()) {
                Write-Host "$Open"
                Write-Host "OpenDiv $($innerItem.Value) CloseDiv"
                Write-Host "$Close"
            }
        }
    }
}

修正说明 #

1. 遍历方式调整：用GetEnumerator()遍历哈希表，直接获取键值对，避免原逻辑中遍历Value导致的层级混乱
2. 字符串子项处理：所有字符串类型的子项都用OpenRow和CloseRow包裹，确保标记结构完整
3. 字典子项层级优化：对于嵌套的字典（如RAM(DDR3)下的SLOT），先输出子分类的行标记，再遍历内部的字符串值，保持结构一致性

正确输出示例片段 #

OpenRow LocalInfo CloseRow
OpenRow
OpenDiv 21.12.2024 CloseDiv
CloseRow
OpenRow
OpenDiv Jopa213 CloseDiv
CloseRow
OpenRow Baseboard(1155) CloseRow
OpenRow
OpenDiv Asus CloseDiv
CloseRow
OpenRow
OpenDiv P5BPro CloseDiv
CloseRow
OpenRow
OpenDiv 4 CloseDiv
CloseRow

内容的提问来源于stack exchange，提问作者alive-one