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在使用$ mddialog時,我在$ mddialog中看到一個父鍵,它扮演什麼角色?
$mdDialog.show({
controller: DialogController,
templateUrl: 'dialog1.tmpl.html',
parent: angular.element(document.body),
targetEvent: ev,
clickOutsideToClose:true,
fullscreen: $scope.customFullscreen
})