Angularjs ng-model在ng-if中不起作用這是顯示問題的小提琴。http://jsfiddle.net/Erk4V/1/如果我在ng-if中有ng模型，則該模型似乎不能按預期工作。我想知道這是一個錯誤還是我誤解了正確的用法。<div ng-app >     <div ng-controller="main">         Test A: {{testa}}<br />         Test B: {{testb}}<br />         Test C: {{testc}}<br />         <div>             testa (without ng-if): <input type="checkbox" ng-model="testa" />         </div>         <div ng-if="!testa">             testb (with ng-if): <input type="checkbox" ng-model="testb" />         </div>         <div ng-if="!someothervar">             testc (with ng-if): <input type="checkbox" ng-model="testc" />         </div>     </div></div>