v-text、v-html、{{}}中都可以跟上js表达式，而不仅仅是变量：

<!DOCTYPE html><html><head> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script src="./vue.js"></script> <!-- <script src="http://cdn.staticfile.org/vue/2.6.10/vue.common.dev.js"></script> --></head><body> <div id="app"> <!-- v-text="name"和{{age}}都可以显示变量，v-html可以渲染出html标签 --> <div v-text="name + ' 666'"></div> <div v-html="html + ' 嘿嘿嘿'"></div> <div>{{age + '呵呵呵'}}</div> </div> <script type="text/javascript"> var vm = new Vue({ el: "#app", data: { name: "<b>阿三</b>", age: "<b>18</b>", html: "<b>this is html</b>" } }) </script></body></html>