angularJS 特殊字符过滤

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<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <title>Title</title>    <script src="ajs/angular.min.js"></script>    <script>        var app=angular.module("myapp",[]);        app.filter("val1",function () {            return function (val,flag) {                return val.replace(/法轮功|枪/g,flag);            }        });        app.filter("val2",function () {            return function (val) {                return val.replace(/法轮功|枪/g,function (word) {                    var count="";                    for(var i=0;i<word.length;i++){                        count+="#";                    }                    return count;                })            }        })        app.controller("crty",function ($scope) {            $scope.val="";        })    </script></head><body><DIV ng-app="myapp" ng-controller="crty"><input type="text" ng-model="val">    <p>{{val|val1:"*"}}</p>    <p>{{val|val2}}</p></DIV></body></html>

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