Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
如你看到的:
t是一个对象,但如果我投t.datamax- 我得到undefined:那是什么,以及如何处理它?
t
t.datamax
undefined
你有一个数组。使用索引0。
0
t[0].datamax;