1,js 数字+字符 会变成字符串
2,json对象和数组
3,设置多个标签
$(‘img[name="error_img"]‘).each(function () { $(this).attr(‘src‘, ‘/images/project/pages/admin/no_u16.png‘); });
jQuery
原文:https://www.cnblogs.com/crsblog/p/8277362.html