调整jupyte

public/javascripts/jupyter.js

@@ -18,7 +18,7 @@ function runEvery10Sec() {
 }
 
 $(function(){
-document.addEventListener('keydown', function(e){
+document.addEventListener('keydown', (e) => {
 	if (e.keyCode == 83 && (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey)){
 		e.preventDefault();
 		console.log("点击了ctrl+s");