function?addEvent(obj,?type,?fn)?{????alert('a');????if?(typeof?obj.addEventListener?!=?'undefined')?{????????alert('b');????obj.addEventListener(type,?fn,?false);????}?else?if?(typeof?obj.attachEvent?!=?'undefined')?{????obj.attachEvent('on'? ?type,?fn);????alert('c');????}?}
無法使用
2
0
0
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