本文最后更新于 2024-03-23T16:32:22+00:00
                  
                  
                
              
            
            
              
                
                兼容点:谷歌浏览器、IE 浏览器
使用方式:
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   |  eventModel.addEventListener(ele, 'click', fn, boolean)
 
  eventModel.removeEventListener(ele, 'click', fn)
 
  eventModel.stopPropagation()
 
  eventModel. preventDefault()
 
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代码实现:就是在里面写不同浏览器支持的 API 而已
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   | const eventModel = {      addEventListener(ele, eventName, fn, flag) {     if(ele.addEventListener) {              ele.addEventListener(eventName, fn, flag)     } else if(ele.addtachEvent) {              ele.addtachEvent(`on${eventName}`, fn)     } else {              ele[`on${eventName}`] = fn     }   },
       removeEventListener(ele, eventName, fn) {     if(ele.removeEventListener) {              ele.removeEventListener(eventName, fn)     } else if(ele.detachEvent) {              ele.addtachEvent(`on${eventName}`, fn)     } else {              ele[`on${eventName}`] = null     }   },
       stopPropagation(event) {     if(event.stopPropagation) {              event.stopProgamation()     } else {             ele.cancelBubble = true     }   }
        preventDefault(event) {     if(event.preventDefault) {              event.preventDefault()     } else {              ele.returnValue = false     }   } }
 
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