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如何在Qt使用CPU?
原标题:How to get CPU usage in Qt?

我有一台主要服务器和4台电脑连接。 我怎么能够学习哪一种计算机如何使用CPU和磁盘。

我用Qt和C++书写代码。

问题回答

为此,Qt没有APIC。 你们需要利用本土的土著预报平台。

或许可以帮助你:

#include <QDebug>
#include <QProcess>

int main(void){
  setenv("LC_NUMERIC", "C",1);
  QProcess process;
  process.start("/usr/bin/uptime",{},QIODevice::ReadWrite);
  process.waitForFinished();

//Get results
  QString output = process.readAllStandardOutput();
  QString err = process.readAllStandardError();

//Get load portion
  QString loads=output.section("load average: ",1,1);
  QString load_lastmin=loads.section(" ",0,0);
  load_lastmin.remove(load_lastmin.size()-1,1);

//For debug
  qDebug() << "Output:" << output;
  qDebug() << "Error:" << err;
  qDebug() << "Loads:" << loads;
  qDebug() << "Load last min:" << load_lastmin;

  return 0;
}

成果实例:

Output: " 10:04:33 up 3 days, 21:39,  1 user,  load average: 0.55, 0.71, 0.78
"
Error: ""
Loads: "0.55, 0.71, 0.78
"
Load last min: "0.55"




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