输入小写自动转大写

onkeypress="return pressCharacter(event);"

/**
 *输入小写自动转大写
 * @param event
 * @return
 */
function pressCharacter(event){
	 var keycode = event.keyCode;
	  if( keycode>=97 && keycode<=122 )
	  {
	    event.keyCode = keycode-32;
	  }
	  return String.fromCharCode(event.keyCode)
}