$(".ui-dialog-buttonpane").find(".ui-button:[data-button-type='cancel']")
$(".ui-dialog-buttonpane").find('button:[role="button"][clickonce="true"][data-button-type="request"]')
$(".ui-dialog-buttonpane").find('button:[role="button"][clickonce="true"][data-button-type=:request:]'.replace(/:request:/,'cancel'))
$('input:radio[name="snmp_version"]:checked')
$('#Editor_Edit_Advanced_Contents input:checkbox:checked')
$('#Editor_Edit_Advanced_Contents').find('input:checkbox:checked')
$('#Editor_Edit_Advanced_Contents').find('input:checkbox:checked').length
$("form").serializeArray()
[{"name":"username","value":""},{"name":"password","value":""}]
$("form").serializeObject()
{"username":"","password":""}
serializeObject仅适用于name值不重复的情况,若name值重复,则取第一个