$a = 9.94; return json_encode($a);
?? ??? ???
9.93999999999999995
? ??? ??? ??? ? ???? 7.0 ?????? ???? 7.1?? ??? ??????
![[? ?????] Node.js ?? ??](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
