Qt Process Demo

Qt上进程的使用.

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Header:#include
qmake:QT += core

重要的接口：.

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开启一个进程.

void start(const QString &program, const QStringList &arguments, QIODevice::OpenMode mode = ReadWrite)
void start(const QString &command, QIODevice::OpenMode mode = ReadWrite)
void start(QIODevice::OpenMode mode = ReadWrite)

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等待进程结束并回收进程资源.

bool waitForFinished(int msecs = 30000)

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结束进程.

void kill()

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信号 Signals.

void errorOccurred(QProcess::ProcessError error)
void finished(int exitCode, QProcess::ExitStatus exitStatus)    //进程结束后会发送该信号
void readyReadStandardError()
void readyReadStandardOutput()
void started()
void stateChanged(QProcess::ProcessState newState)

用例

//新建一个QT进程
QProcess *myPro = new QProcess(this);

//用该进程去执行任务
myPro->start("对应的任务");

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