Question

在Qt c ++中将字符串拆分为新行

Qstring是

Qstring str = "diskinfo: Node: ASHUTOSH-PC, Description: Local Fixed Disk, FreeSpace: 418581491712, Name: C:, Size  : 499875049472  Node: ASHUTOSH-PC, Description: CD-ROM Disc, FreeSpace: , Name: D:, Size  :   Node: ASHUTOSH-PC, Description: Local Fixed Disk, FreeSpace: 324982935552, Name: E:, Size  : 487687450624  Node: ASHUTOSH-PC, Description: CD-ROM Disc, FreeSpace: 0, Name: F:, Size  : 553459712"

预期出局是

  "diskinfo: Node: ASHUTOSH-PC, Description: Local Fixed Disk, FreeSpace: 420842713088, Name: C:, Size  : 499875049472
             Node: ASHUTOSH-PC, Description: CD-ROM Disc, FreeSpace: , Name: D:, Size  : 
             Node: ASHUTOSH-PC, Description: Local Fixed Disk, FreeSpace: 324858568704, Name: E:, Size  : 487687450624 
             Node: ASHUTOSH-PC, Description: CD-ROM Disc, FreeSpace: 0, Name: F:, Size  : 553459712"

那就是它应该只在有空格而不是有逗号后跟空格时分开？即它应该从每一行的Node开始？任何人都可以帮助如何在Qt c ++中完成这项工作

现在以下是我的代码写的：

   QString Utils::getDiskSpace( )
     {
          static QString diskSpaceCmd ( qgetenv("WINDIR")
                               + "\\system32\\wbem\\wmic logicaldisk get name, freespace, size, description /format:csv");

 QProcess proc;
 QByteArray qba;
 QString out_str;
 QString newStr;


 proc.start(diskSpaceCmd);

 if(proc.waitForFinished(-1))
     {
      qba = proc.readAllStandardOutput();
      qba = qba.trimmed();
      qba =qba.replace('\r',' ');
      QString myString =qba;

      QStringList myStringList = myString.split("\n");

      QStringList descriptions = myStringList[0].split(",");

      for(int index = 1;index < myStringList.length();index++)
      {
          QStringList data = myStringList[index].split(",");
          QStringList out;
          for(int ind_2 = 0; ind_2 < data.length(); ind_2++)
              out.push_back(descriptions[ind_2] + ": " +data[ind_2]);
           out_str += out.join(", ");
      }


      out_str = out_str.replace("Node:", "\nNode:");
      QStringList list;

      if( !out_str.startsWith( '\n' ) )
              out_str+=' ';

      for( int i = 0; i < out_str.count( '\n' ); ++i ){
          list << out_str.section( '\n', i, i, QString::SectionIncludeTrailingSep ).simplified();
      }
      foreach( QString out_str, list )
          QLOG_DEBUG()<<"Out_Str" << out_str;
 }
 QString diskSpace(out_str);
 return (diskSpace);

}

Answer 1

可能听起来很明显但是，如何使用QString::split？

QStringList strList = str.split(QRegularExpression("\WNode"),QString::SkipEmptyParts);

然后，您可以使用prepend在每个字符串的开头添加“节点”字样。

我就是这样做的。

如何将Qstring拆分为新行

1 个答案: