下拉框選中一個選項後 觸發事件
阿新 • • 發佈：2019-01-02
第一個例項
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <script language="JavaScript"> <!-- function GaiBian(osel){ if(osel.options[osel.selectedIndex].text==1){alert(11);} } //--> </script> </head> <body> <select name='selectSS' onChange="GaiBian(this)"> <option value='1'>1 </option> <option value='2'>2 </option> <option value='3'>3 </option> </select> <select onchange="window.location.href=this.options[this.selectedIndex].value"> <option value="http:\\www.baidu.com">百度</option> <option value="http:\\www.google.cn">谷歌</option> </select> </body> </html>
第二個例項
target.style.display="block"; } if (osel.options[osel.selectedIndex].value==2){target.style.display="none"; } } //--> </script> </head> <body> <select name='selectSS' onChange="GaiBian(this)"> <option value='1'>1 </option> <option value='2'>2 </option> </select> <div id="contentid" class="none">開啟的內容</div> </body></html><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <script language="JavaScript"> <!-- function GaiBian(osel){ var target=document.getElementById('contentid'); if(osel.options[osel.selectedIndex].value==1){ <pre name="code" class="html"> //if(osel.options[osel.selectedIndex].text==1){
if(osel.options[osel.selectedIndex].value==1){