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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | export default class Event{ static add(t,eventName,cb){ if(window.addEventListener){ t.addEventListener(eventName,cb,false) }else if(window.attachEvent){ t.attachEvent(`on${eventName}`,cb) }else{ t[`on${eventName}`] = cb; } } static del(t,eventName,cb){ if(window.removeEventListener){ t.removeEventListener(eventName,cb,false) }else if(window.detachEvent){ t.detachEvent(`on${eventName}`,cb) }else{ t[`on${eventName}`] = null; } } } |