DOM脚本与jQuery 1:Hola mundo；

Posted 2021-02-27

/*DOM Scripting*/
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}
 
function mostrarVentana(){
	alert('Hola mundo sin jQuery');
}
 
addLoadEvent(mostrarVentana);
 
 
/*jQuery*/
$(document).ready(function(){
	alert('Hola mundo con jQuery');
});