v-else-if 要緊跟 v-if
v-else要緊跟v-else-if 或 v-if
代碼:
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>vue.js v-if語法使用 </title> <script src="vue.js"></script> <script src="node_modules/axios/dist/axios.js"></script> <script src="node_modules/lodash/lodash.js"></script> </head> <body> <div id="ask"><!--vue不能控制body和html的標簽--> <input type="text" v-model="age"> <span v-if="age<20">小孩</span> <span v-else-if="age<30">青年</span> <span v-else-if="age<40">中年</span> <span v-else>老年</span> <hr> <input type="checkbox" v-model="copyright"> 接受協議 <span v-if="!copyright">請先接受協議</span> <button v-else>注冊</button> </div> <script> var app = new Vue({ //實例化vue el:'#ask',//vue控制id為ask的元素, data:{ age:0, copyright:false }, }); </script> </body> </html>
