在函数里面加入return false即可
1 <html> 2 <head><head/> 3 <script> 4 function change() { 5 p.innerText = f.a.value; 6 return false; 7 } 8 </script> 9 <body> 10 <p id="p">1</p> 11 <form name="f" id="f" onSubmit="return change();"> 12 <input name="a" type="text" value="kk"/> 13 <input type="submit" value="submit"/> 14 </form> 15 </body> 16 </html>