QT控制台如何清晰的屏幕？ [英] How clear screen in QT console?

问题描述

我需要清除QT控制台。什么是comand？

I need clear QT console. What is the comand?

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    cout<<"How delete this?";
    //system("CLS")?
    return a.exec();
}

推荐答案

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You can execute:

QProcess::execute("CLS");

这当然只适用于Windows。在Linux / Unix-ish系统上，你需要做：

This will of course only work on Windows. On Linux/Unix-ish systems, you'll need to do:

QProcess::execute("clear");

如果所有你需要做的是清除屏幕，这些都可以工作。但是，如果你想建立一个更复杂的基于文本的界面（某些行是固定的，或者如果你想绘制一些进度指示器等），你需要更复杂的东西。

If all you need to do is clear the screen, these things will work. However, if you're trying to build a more sophisticated text-based interface (where certain lines are fixed, or if you want to draw some progress indicators or the like), you'll need something more sophisticated.

• 在Linux上有ncurses： http： //www.gnu.org/software/ncurses/


• 在Windows上，有一个curses端口调用PDCurses： http://pdcurses.sourceforge.net/ 。这将让你运行与ncurses几乎相同的代码。如果您只专注于Windows，则可以查看Windows的控制台API： http://msdn.microsoft.com/en-us/library/ms682073%28VS.85%29.aspx

• On Linux there's ncurses: http://www.gnu.org/software/ncurses/
• On Windows, there's a curses port call PDCurses: http://pdcurses.sourceforge.net/. This will let you run nearly the same code as ncurses. If you're only focused on Windows, you can look at Windows' Console API: http://msdn.microsoft.com/en-us/library/ms682073%28VS.85%29.aspx

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