Home  >  Article  >  Backend Development  >  两道标题和解答,求改进

两道标题和解答,求改进

WBOY
WBOYOriginal
2016-06-13 12:56:09767browse

两道题目和解答,求改进
初学 php ,很多都不懂,能不能指导一下这两道题目更好的解法,谢谢

<br>
<br>
<br>
<br>

        
                
                
        

        
                

                

                    a
                    

                    

                    

                

                    

                              
                    b
                    

                    

                

                                             
                    c
                    

                    

                    

                

                    

                    

                    d
                
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn