qstring substring

相關問題 & 資訊整理

qstring substring

Yes, you can use QFontMetrics::elidedText to do so. For example, to cut at 200 pixels use: QString cutString = yourFontMetrics.,I suppose you are looking for QRegExp::capturedTexts() . An example from the official documantation: QRegExp rx("(--d+)(--s*)(cm|inch(es)?)"); int pos = rx. ,You could use two different methods for this, based on your need: split() · section(). main.cpp. #include <QString> #include <QDebug> int main() QString ... ,If you want to find all occurrences of a particular character or substring in a QString, use the indexOf() or lastIndexOf() functions. The former searches forward ... ,QString, arg(const QString &a, int fieldWidth = 0, QChar fillChar = QLatin1Char(' ')) ... If you want to see if a QString starts or ends with a particular substring use ... ,QString, arg(const QString &a, int fieldWidth = 0, QChar fillChar = QLatin1Char(' ')) ... If you want to see if a QString starts or ends with a particular substring use ... , If you do not need to modify the substring, then you can use QStringRef . The QStringRef class is a read only wrapper around an existing ..., QString str = D:/Users/xxx/hello.png;//原始字符串int index = str.lastIndexOf(/);//查找最后一次出现/在字符串中的索引,结果为index=12;QString str1 ..., How can I produce a substring from QString if I would like to have the string consist of all the chars from the 3:rd one to the 15:th char? Should I ...

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qstring substring 相關參考資料
Get Substring of QString by Pixels in Qt cpp - Stack Overflow

Yes, you can use QFontMetrics::elidedText to do so. For example, to cut at 200 pixels use: QString cutString = yourFontMetrics.

https://stackoverflow.com

How to get substring from a QString using QRegExp? - Stack ...

I suppose you are looking for QRegExp::capturedTexts() . An example from the official documantation: QRegExp rx(&quot;(--d+)(--s*)(cm|inch(es)?)&quot;); int pos = rx.

https://stackoverflow.com

How to get substring from a string in qt? - Stack Overflow

You could use two different methods for this, based on your need: split() &middot; section(). main.cpp. #include &lt;QString&gt; #include &lt;QDebug&gt; int main() QString&nbsp;...

https://stackoverflow.com

QString Class | Qt 4.8 - Qt Documentation

If you want to find all occurrences of a particular character or substring in a QString, use the indexOf() or lastIndexOf() functions. The former searches forward&nbsp;...

https://doc.qt.io

QString Class | Qt Core 5.12.9 - Qt Documentation

QString, arg(const QString &amp;a, int fieldWidth = 0, QChar fillChar = QLatin1Char(&#39; &#39;)) ... If you want to see if a QString starts or ends with a particular substring use&nbsp;...

https://doc.qt.io

QString Class | Qt Core 5.15.0 - Qt Documentation

QString, arg(const QString &amp;a, int fieldWidth = 0, QChar fillChar = QLatin1Char(&#39; &#39;)) ... If you want to see if a QString starts or ends with a particular substring use&nbsp;...

https://doc.qt.io

Qt. get part of QString - Stack Overflow

If you do not need to modify the substring, then you can use QStringRef . The QStringRef class is a read only wrapper around an existing&nbsp;...

https://stackoverflow.com

Qt中字符串截取_沉默中的火柴-CSDN博客_qt 中substr

QString str = D:/Users/xxx/hello.png;//原始字符串int index = str.lastIndexOf(/);//查找最后一次出现/在字符串中的索引,结果为index=12;QString str1&nbsp;...

https://blog.csdn.net

The easiest way of creating a substring from a QString

How can I produce a substring from QString if I would like to have the string consist of all the chars from the 3:rd one to the 15:th char? Should I&nbsp;...

https://www.qtcentre.org