1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Document</title> 6 <script type="text/javascript"> 7 window.onload = function(){ 8 function fnMystyle(mystyle,val){ 9 var oDiv = document.getElementById('div1') 10 oDiv.style[mystyle] = val; 11 } 12 13 fnMystyle('fontSize', '30px') 14 fnMystyle('color', 'red') 15 } 16 </script> 17 </head> 18 <body> 19 <div id="div1">这是一个div</div> 20 </body> 21 </html>