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qt带小数点的数字串显示,Qt-自定义小数点和千位分隔符

發布時間:2024/4/18 编程问答 29 豆豆
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How can I convert a number (double) to string, with custom decimal point and thousand separator chars?

I've seen QLocale, but I don't want to choose the localization country, but rather specify my own decimal point and thousand separator chars.

Thanks

解決方案

Qt doesn't support custom locale. But to deal with just group and decimal point characters is trivial:

const QLocale & cLocale = QLocale::c();

QString ss = cLocale.toString(yourDoubleNumber, 'f');

ss.replace(cLocale.groupSeparator(), yourGroupChar);

ss.replace(cLocale.decimalPoint(), yourDecimalPointChar);

BTW, spbots' question is not irrelevant. More detail about the goal always helps and it could lead to different approach that may serve you better.

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