C++ 打开 QFile 进行追加

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时间:2020-08-27 17:46:18  来源:igfitidea点击:

Open QFile for appending

c++fileqtqfile

提问by sashoalm

How can I open a QFile for appending, i.e. the equivalent of

如何打开一个 QFile 进行追加,即相当于

FILE *f = fopen("myfile.txt", "a");

回答by Maciej

Open the file in QIODevice::Appendmode:

QIODevice::Append模式打开文件:

QFile f(...);
if (f.open(QIODevice::WriteOnly | QIODevice::Append)) {
  ...
}

See also the documentation.

另请参阅文档