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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # 再體驗 需求:在輸入框輸入數據,會顯示到`span`元素內部。也通過`js`和`vue`版去對比學習。 ## js版 ```html <div> <input type="text" id="input"> <span id="box"></span> </div> <script> var oinput = document.getElementById('input') var obox = document.getElementById('box'); oinput.oninput = function () { obox.innerHTML = this.value; } </script> ``` ## Vue版 ```html <div id="app"> <input type="text" v-model="str"> <span>{{ str }}</span> </div> <script src="vue.js"></script> <script> var vm = new Vue({ el:'#app', data:{ str:'你好' } }) </script> ``` **注意事項** > 這里面的`v-model` 其實就是專門 針對表單元素做的處理方式 > el綁定的元素不可以是`body`或者`html` ![](./assets/1558701567838.png)
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                              哎呀哎呀视频在线观看