js实现HTML中radio[单选框]可反选(取消选择)

$(function () { $('input:radio').click(function () { var domName = $(this).attr('name'); var $radio = $(this); // if this was previously checked if ($radio.data('waschecked') == true) { $radio.prop('checked', false); $("input:radio[name='" + domName + "']").data('waschecked', false); //$radio.data('waschecked', false); } else { $radio.prop('checked', true); $("input:radio[name='" + domName + "']").data('waschecked', false); $radio.data('waschecked', true); } }); });