vue3.0 {{count}} 加 减 let{createApp,ref}=Vue createApp({ setup() { letcount=ref(0) lethandleAdd=()=>{ count.value++ } lethandleSub=()=>{ count.value-- } return{ count, handleAdd, handleSub } } }).mount('#app') ...
{{count}} 加 减 let { createApp, ref } = Vue createApp({ setup() { let count = ref(0) let handleAdd = () => { count.value++ } let handleSub = () => { count.value-- } return { count, handleAdd, handleSub } } }).mount('#app') 1. 2. 3. 4...
通过cdn安装vue setup() createApp() ref <!DOCTYPEhtml>vue3.0{{count}}加减let{ createApp, ref } =VuecreateApp({setup() {letcount =ref(0)lethandleAdd= () => { count.value
{{count}} 加 减 let { createApp, ref } = Vue createApp({ setup() { let count = ref(0) let handleAdd = () => { count.value++ } let handleSub = () => { count.value-- } return { count, handleAdd, handleSub } } }).mount('#app') 1. 2. 3. 4...