I think what you want to do is this: $(this).children('img').eq(0);. this will give you a jquery object containing the first img element, whereas ... <看更多>

$(selector).children([selector]) ... $('#menu').children().css('color', 'red') ... $('#menu').children('.c').css('color', 'red') ... ... <看更多>

jQuery plugin to apply equal heights to children of a DOM element, with filters and targets. - jquery.equal_heights.js. ... <看更多>

... <看更多>