<ul><li ng-repeat="item in data" repeat-finish＝"renderFinish()">{{item.str}}</li>
</ul>

app.directive('repeatFinish',function(){return {link: function(scope,element,attr){console.log(scope.$index)if(scope.$last == true){console.log('ng-repeat执行完毕')scope.$eval( attr.repeatFinish )}}}
})

//controller里对应的处理函数
$scope.renderFinish = function(){console.log('渲染完之后的操作')
}