认证高级PHP讲师
http://love-love-l.blog.163.c...
The output of
System.out 和 System.err is performed independently and will not be executed strictly in the order of statements.
System.out
System.err
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
http://love-love-l.blog.163.c...
The output of
System.out和System.erris performed independently and will not be executed strictly in the order of statements.