扩展接口

jQuery.fn.extend({check: function() {return this.each(function() { this.checked = true; });},uncheck: function() {return this.each(function() { this.checked = false; });}});$(function(){$("input[type=checkbox]").check().css("border","solid 1px red");$("input[type=radio]").uncheck().css("border","solid 1px blue");});