The fibonacci function uses a while loop with mutable variables. The := operator is used inside the loop (i = i + 1) to reassign. Variables declared with an explicit type annotation like a: i64 = 0 can be reassigned with =.
某种程度说，这也是对Sea Expandary必然成功的一种背书。
，详情可参考新收录的资料
Фото: Олег Харсеев / Коммерсантъ，推荐阅读新收录的资料获取更多信息
checks on its own certs,