    	var editor = ace.edit("editor");
    	ace.require("ace/ext/language_tools");
    	editor.setTheme("ace/theme/twilight");
    	editor.getSession().setMode("ace/mode/javascript");
    	editor.getSession().setTabSize(4);
    	editor.getSession().setUseWrapMode(true);
    	editor.commands.addCommand({
    		name: 'editSave',
    		bindKey: {win: 'Ctrl-S',  mac: 'Command-S'},
    		exec: function(editor) {
    			console.log(editor.getValue());
    		}
    	});
    	editor.setDragDelay(10);
    	editor.setFontSize(13);
    	editor.on("change", function(e){
    	  editor.commands.exec('startAutocomplete',editor);
    	})
    	editor.setShowPrintMargin(false);//显示固定宽度
    	//自动补全
    	editor.setOptions({
            enableBasicAutocompletion: true,
            enableSnippets: true
        });