mac下获得系统版本信息的plist文件

    1. more /System/Library/CoreServices/SystemVersion.plist
    1. <?xml version="1.0" encoding="UTF-8"?>
    2. <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    3. <plist version="1.0">
    4. <dict>
    5.         <key>ProductBuildVersion</key>
    6.         <string>20D91</string>
    7.         <key>ProductCopyright</key>
    8.         <string>1983-2021 Apple Inc.</string>
    9.         <key>ProductName</key>
    10.         <string>macOS</string>
    11.         <key>ProductUserVisibleVersion</key>
    12.         <string>11.2.3</string>
    13.         <key>ProductVersion</key>
    14.         <string>11.2.3</string>
    15.         <key>iOSSupportVersion</key>
    16.         <string>14.4</string>
    17.         <key>demo</key>
    18.         <array>
    19.         <string>com.popcap.ios.PvZ2</string>
    20.         <string>com.tongbu.tui</string>
    21.         <string>com.cmbchina.MPBBank</string>
    22.         </array>
    23. </dict>
    24. </plist>
    1. #include <QDomElement>
    2. #include <QFile>
    4. /*
    5.     QString versionPath = "/System/Library/CoreServices/SystemVersion.plist";
    6.     QString version = machine.ParserListElement(root, "ProductVersion");
    7. */
    8. QDomElement readPlistFile(QString fileName)
    9. {   
    10.     QFile file(fileName);
    11.     if (!file.open(QFile::ReadOnly | QFile::Text)) {
    12.         return QDomElement();
    13.     }
    14.     const QByteArray& buffe = file.readAll();    
    16.     QString errorstr;
    17.     int errorLine;
    18.     int errorCol;
    20.     QDomDocument doc;
    22.     if (!doc.setContent(buffe, false, &errorstr, &errorLine, &errorCol)) {
    23.         return QDomElement();
    24.     }
    26.     QDomElement root = doc.documentElement();
    27.     if (root.tagName() == "plist") {
    28.         return root;
    29.     }
    30.     return QDomElement();
    31. }
    33. QString ParserListElement(const QDomElement& element, const QString& key)
    34. {
    35.     QDomNode child = element.firstChild();
    36.     QString result = QString();
    37.     while (!child.isNull()) {
    38.         if (child.toElement().tagName() == "dict") {
    39.             result = ParserDictElement(child.toElement(), key);
    40.             if (!result.isEmpty()) {
    41.                 break;
    42.             }
    43.         }
    44.         child = child.nextSibling();
    45.     }
    46.     return result;
    47. }
    49. QString ParserDictElement(const QDomElement& element, const QString& key)
    50. {
    51.     QDomNode child = element.firstChild();
    52.     QString result = QString();
    53.     while (!child.isNull()) {
    54.         if (child.toElement().tagName() == "key") {
    55.             if (child.toElement().text() == key) {
    56.                 child = child.nextSibling();
    57.                 result = child.toElement().text();
    58.                 break;
    59.             }
    60.         }
    61.         child = child.nextSibling();
    62.     }
    63.     return result;
    64. }