t_block find_block(t_block *last , size_t size){
t_block b=base;
while (b && !(b->free && b->size >= size)) {
*last = b;
b = b->next;
}
return (b);
}
https://blog.csdn.net/wxx258369/article/details/78812279?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522166840926716782412515915%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=166840926716782412515915&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_ecpm_v1~rank_v31_ecpm-1-78812279-null-null.nonecase&utm_term=malloc&spm=1018.2226.3001.4450
// 这一篇中代码第二行的base请问是什么呢，又是在哪里声明的呢?@wxx258369