自定义小数点和千位分隔符

QString str = QString("%L1").arg(yourDouble);

据说可以，但是怎么用还没搞懂

const QLocale & cLocale = QLocale::c();
QString ss = cLocale.toString(yourDoubleNumber, 'f');
ss.replace(cLocale.groupSeparator(), yourGroupChar);
ss.replace(cLocale.decimalPoint(), yourDecimalPointChar);

标签：QLocale,自定义,千位,ss,replace,QString,分隔符,cLocale
来源： https://www.cnblogs.com/qianxiaoPro/p/15471786.html