<div id="demo" v-html="ProContent | replace">
</div>
<script>
    Vue.filter('replace', function (input) {
        return input.replace(/~/g, '"')
    })

    var vm = new Vue({
        el: '#demo',
        data: {
            ProContent: "<img src=~/upload/201603/30/201603301629091673.jpg~ alt=~~ />",
        }
    })
</script>