如何将list集合的值取出来，并放到数组里

Question

Topic{t_id=2, t_name='null', t_a='null', t_b='null', t_c='null', t_d='null', t_answer='null', t_s_name='null'}
比如说这个list集合，怎么取里面的t_id的值，然后放进数组里

Answer 1

https://blog.csdn.net/a898712940/article/details/118656924