如何使用angularjs动态设置CSS样式？

Question

<div style="width: 50px !important">

I want to set the pixel number dynamically by angularjs. The final width should also be calculated times a base pixel width. How could I achieve this?

<div ng-style="{{width: (model.number * 30)px !important}}">

This does of course not work, but shows what I'm trying to achieve. I'd like this do be done without having to introduce a controller function.

Answer 1

尝试这个：

<div ng-style="{width: (model.number * 30) +'px'}">

Answer 2

This works fine.

HTML:

<div ng-app="myApp" ng-controller="myCtrl">
  <p> Number: <input type="number" ng-model="model.number" /> </p> 

  <p> Times:  <input type="number" ng-model="model.times" /></p>
  <p style="outline:1px solid black; width:{{model.number*model.times}}px;" >Resulding width: {{model.number*model.times}} px</p>
</div>

Controller:

angular.module("myApp", []).controller("myCtrl", ["$scope", function($scope){
  $scope.model = {
    number: 50,
    times: 2
  }
}]);

Answer 3

这应该工作

<div ng-style="{'width': model.number * 30}">