[提问]求助，QT中double 类型数据如何转换成QString型 [复制链接]

RT  谢谢大家了

QString QString::number ( double n, char format = 'g', int precision = 6 ) [static]
Returns a string equivalent of the number n, formatted according to the specified format and precision. See Argument Formats for details.
Unlike QLocale::toString(), this function does not honor the user's locale settings.
See also setNum() and QLocale::toString().


所以，如下

看QString的帮助。