vue中v-if出现的问题

Question

usernameemail我写完上面的代码后，vue-cli马上出现下面的错误./node_modules/vue-loader/lib/template-compiler?{"id":"data-v-f68cdee0","hasScoped":true,"transformToRequire":{"video":["src","poster"],"source":"src","img":"src","image":"xlink:href"},"buble":{"transforms":{}}}!./node_modules/vue-loader/lib/selector.js?type=template&index=0!./src/components/DemoIf.vue(EmittedvalueinsteadofaninstanceofError)Errorcompilingtemplate:usernameemail-Componenttemplateshouldcontainexactlyonerootelement.Ifyouareusingv-ifonmultipleelements,usev-else-iftochaintheminstead.@./src/components/DemoIf.vue11:0-362@./src/router/index.js@./src/main.js@multi(webpack)-dev-server/client?http://localhost:8080webpack/hot/dev-server./src/main.js

Answer 1

Componenttemplateshouldcontainexactlyonerootelement.Ifyouareusingv-ifonmultipleelements,usev-else-iftochaintheminstead.组件模板应该只包含一个根元素
                            

Answer 2

楼上说了，template里面只能有一个根元素
改成