$.ui = $.ui || {};var version = $.ui.version = "1.12.1";// 是否为ie浏览器var ie = $.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );$.ui.plugin = { add: function(args) {}, call: function(args) {}}$.ui.safeBlur = function( element ) {}调用:$.ui.plugin.add();或者$.ui.plugin.add[fn]()