QT double 转换为QString的方法_qt double转qstring

作者：繁依Fanyi0 | 2024-02-18 11:57:02

踩

qt double转qstring

1. 不指定小数位数


double value = 1.2345
QString str = QString("%1").args(double value = 1.2345);

2. 指定小数位数


double value = 1.2345
QString str = QString::number(value, 'f', 2);
//QString::number(double n, char format = 'g', int precision = 6)
//Format Meaning
//e  format as [-]9.9e[+|-]999
//E  format as [-]9.9E[+|-]999
//f  format as [-]9.9
//g  use e or f format, whichever is the most concise
//G  use E or f format, whichever is the most concise

声明：本文内容由网友自发贡献，不代表【wpsshop博客】立场，版权归原作者所有，本站不承担相应法律责任。如您发现有侵权的内容，请联系我们。转载请注明出处：https://www.wpsshop.cn/w/繁依Fanyi0/article/detail/107742