如何使用js触发select的change事件？
网上搜了一下，都说用fireEvent，但是貌似不起作用啊~那可以怎么办呢？急用，thanks~
var list = document.getElementById('province'); function setProvinceIndex() { for(var i=0; i<list.options.length; ++i) { if(list.options[i].value=='7') { list.selectedIndex = i; break; } } if(list.fireEvent) { list.fireEvent('onchange'); } else if(list.change) list.change(); } }<!DOCTYPE HTML><html lang="en-US"><head> <meta charset="UTF-8"> <title></title></head><body> <select id='province'> <option value='6'>66 <option value='7'>77 <option value='8'>88 </select> <input type='button' onclick = 'setProvinceIndex();' value='setPi'> <script type="text/javascript"> var list = document.getElementById('province'); function setProvinceIndex() { /*for(var i=0; i<list.options.length; ++i) { if(list.options[i].value=='7') { list.selectedIndex = i; break; } }*/ list.value = 7; if(list.fireEvent) { //ie list.fireEvent('onchange'); } else if(list.onchange){ list.onchange(); } } list.onchange = function(){alert("event");} </script></body></html>