angular没有自带ng-scroll【版权所有，侵权必究】转载请注明出处：www.tangshuang.net，只能自己写个directive来代替：
本文作者：唐霜，转载请注明出处。【原创不易，请尊重版权】【本文受版权保护】module.exports = ['$parse', ($parse) => {
'ngInject'
return {
restrict: 'A',
link: (scope, element, attrs) => {
element.on('scroll', () => {
let scripts = attrs.ngScroll
let parse = $parse(scripts)
parse(scope)
scope.$apply()
})
}
}
}]
