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jquery counts the number of input characters and judges them_jquery

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WBOYOriginal
2016-05-16 17:05:01891browse

1. js code part

Copy code The code is as follows:



2. html part
Copy the code The code is as follows:


< ;span id="name_word">0/30

3. Post a picture to see the effect
jquery counts the number of input characters and judges them_jquery
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