打开 QFile 进行追加

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

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

推荐答案

以QIODevice::Append模式打开文件:

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

另请参阅文档.