After following, you can keep track of his dynamic information in a timely manner
Courses in the relevant section：Request request object_1
dump()函数相当于 echo '<pre>'; print_r("arr");
2018-05-050个赞
Courses in the relevant section：Request request object_2
request::get（）这个表示是一个静态的代理方法 request->这个表示是一个动态的方法
2018-05-050个赞
