在Qt中强制点而不是浮点的逗号 [英] Force point and not comma for floating point in Qt

问题描述

我有一个非常基本的问题：如何在Qt中使用浮点数而不是逗号（我有一个法语版本的操作系统）？

$ b

解决方案

其他问题：可以用空格显示数千个分隔符的数字。 p>

  QLocale loc = QLocale :: system（）; // current locale 
 loc.setNumberOptions（QLocale :: c（）。numberOptions（））; //从C语言环境中借用数字选项
 QLocale :: setDefault（loc）; //设置为默认值
  

如果你想要所有的选项在C语言环境，可以简单地做

  QLocale :: setDefault（QLocale :: c（））;关于您的第二个问题：Qt不支持自定义语言环境，但您可以尝试将数字选项设置为，说匈牙利的语言环境（应该产生1234和12 345.67  - 我没有自己尝试过）
  QLocale loc = QLocale ：：系统（）; // current locale 
 QLocale hungary（QLocale :: Hungarian）; 
 loc.setNumberOptions（hungary.numberOptions（））; //从匈牙利语语言环境中借用数字选项
 QLocale :: setDefault（loc）; //设置为默认
  
 
I have a very basic question: how can I enforce the use of points in floating-point numbers instead of a comma (I have a french version of my OS) in Qt?

Other question :is it possible to display numbers with space for thousands separators?
解决方案
Try this:
QLocale loc = QLocale::system(); // current locale
loc.setNumberOptions(QLocale::c().numberOptions()); // borrow number options from the "C" locale
QLocale::setDefault(loc); // set as default
If you want all of the options as in the "C" locale, you can simply do
QLocale::setDefault(QLocale::c());
Regarding your second question: Qt does not support custom locales, but you can try setting the number options to, say, Hungary's locale (it should produce 1234 and 12 345.67 - I haven't tried it myself)
QLocale loc = QLocale::system(); // current locale
QLocale hungary(QLocale::Hungarian);
loc.setNumberOptions(hungary.numberOptions()); // borrow number options from the Hungarian locale
QLocale::setDefault(loc); // set as default


                        
这篇关于在Qt中强制点而不是浮点的逗号的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！