阻止向上冒泡

$('#J_app_cr_content_menu').on('click', 'li:not(.disabled) i', function (e) {
var $target = $(e.target).parent('a');
// 老版支持
var appVersion = $('#J_app_version').val();
if (appVersion == 'old') {
renderOldCr($target);
}
if (appVersion == 'new') {
renderNewCr($target);
}
e.stopPropagation();
});