JS Binding Event Method: AddEventListener and attachevent compatibility with different browsers

JS's event binding method, ie only support attachevent, and FF and Chrome only support AddEventListener, so you have to do the two methods compatible, the principle is to first judgeAttachevent only true (existence), if True then use the attachevent () method, otherwise the AddEventListener (). In addition, to avoid the need to judge each time the event is bound, a function myaddevent (OBJ,EV,FN) {} can be encapsulated. The code is as follows:
<! DOCTYPE html>

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JS Binding Event Method: AddEventListener and attachevent compatibility with different browsers