解决问题 如果在工程文件中添加一行 CONFIG -= app_bundle ,就可以阻止创建一个 app bundle,它会将可执行文件 放入 I 一个子目录下。这样做还允许用户与标准 I/O 的交互。
; QTextCodec *codec = QTextCodec:: codecForLocale (); QString a = codec-toUnicode (a manual); None of the above solves the problem. Continuing to search the question, I finally found the real answer in a blog: the font problem. A very strange phenomenon is found under the QT4 Title...
QString i; // current file's number QString total; // number of files to process QString fileName; // current file's name QString status = QString("Processing file %1 of %2: %3") .arg(i).arg(total).arg(fileName);One advantage of using arg() over sprintf() is that the ord...
Returns -1 if str is not found. If cs is Qt::CaseSensitive (default), the search is case sensitive; otherwise the search is case insensitive. This function was introduced in Qt 4.8. int QString::indexOf(const QRegExp &rx, int from = 0) const This function overloads indexOf(). ...
新版的Qt6.5在ubuntu上编译运行程序后会提示 qt.qpa.plugin: Could not loadthe Qt platform plugin "xcb" in "" even though it was found. ,无法正常弹出窗体程序,你需要主动安装xcb的相关库。sudo apt install libxcb* 有些场景下我们需要在 QApplication a(argc, argv); 前面执行一些处理,比如 QApplicati...
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我可以逐行读取,并将整个内容写入新文件。但我想做的是: QString oldfilename = "log_file"; } 有人能建议一种有效<em 浏览6提问于2022-11-09得票数 0 回答已采纳 2回答 如何在tensorflow中解析csv文件中带换行符的字符串? 、、、 官方的tensorflow教程建议通过使用tf.TextLineReader逐行读取文件,然后使用...
when read the file may be read out is garbled or simply program is dead, this is what we do not want to see, here is how to read the Chinese file through the QT class. Introductory part We need to use several classes in header files: ...
Returns -1 if str is not found.If cs is Qt.CaseSensitive (default), the search is case sensitive; otherwise the search is case insensitive.This function was introduced in Qt 4.8.QString QString.insert (self, int i, QString s) Inserts the string str at the given index position and ...
Returns -1 if ch could not be found. int QString::indexOf(QLatin1String str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const Returns the index position of the first occurrence of the string str in this string, searching forward from index position from. Returns -1 ...