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JS simple expansion and closing switching code_javascript skills

WBOY
WBOYOriginal
2016-05-16 18:29:281079browse

The first method: The principle is relatively simple by judging whether it is currently hidden or displayed, and use this to judge.


[Ctrl A Select all Note: If you need to introduce external Js, you need to refresh to execute
]


The second type : It’s simpler, but the principle is not obvious at a glance
Friends who can explain it in detail can leave a message and we will add more
jb51.net welcomes you
[Ctrl A select all Note:
If you need to introduce external Js, you need to refresh to execute ]
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