本篇主要说明表单控件的数据绑定，这次没有新的知识点
文本框
1、普通文本框
<div id="app-1"> <p><input v-model="textBox" placeholder="输入内容...">输入的内容：{{ textBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { textBox: ‘‘ } }) </script>
2、数字文本框
<div id="app-1"> <p><input v-model.number="numberTextBox" type="number" placeholder="输入内容..."> 输入的内容：{{ numberTextBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { numberTextBox: ‘‘ } }) </script>
.number参数会强制把返回值转成Number类型，因为就算是type="number"，返回的也是字符串型
3、多行输入框
<div id="app-1"> <p><textarea v-model="multiTextBox" placeholder="输入内容..."></textarea></p> <p>输入的内容：</p> <p style="white-space:pre">{{ multiTextBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { multiTextBox: ‘‘ } }) </script>
style="white-space:pre"表示空白会被浏览器保留。其行为方式类似 HTML 中的 <pre> 标签
复选框
1、单个复选框
<div id="app-1"> <input type="checkbox" id="checkbox" v-model="singleCheckBox"> <label for="checkbox">{{ singleCheckBox }}</label> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { singleCheckBox: false } }) </script> </body>
2、定义属性单个复选框
<div id="app-1"> <input type="checkbox" id="checkbox" v-model="customSingleCheckBox" v-bind:true-value="customTrue" v-bind:false-value="customFalse"> <label for="checkbox">{{ customSingleCheckBox }}</label> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { customTrue: ‘真‘, customFalse: ‘假‘, customSingleCheckBox: ‘假‘ } }) </script>
v-bind:true-value设置为真时的属性，v-bind:false-value设置为假时的属性
3、多个复选框
<div id="app-1"> <input type="checkbox" id="tansea" value="TanSea" v-model="multiCheckBox"> <label for="tansea">TanSea</label> <input type="checkbox" id="google" value="Google" v-model="multiCheckBox"> <label for="google">Google</label> <input type="checkbox" id="baidu" value="Baidu" v-model="multiCheckBox"> <label for="baidu">Baidu</label> <p>选择的项：{{ multiCheckBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { multiCheckBox: [] } }) </script>
单选框
<div id="app-1"> <input type="radio" id="male" value="男" v-model="radioBox"> <label for="male">男</label> <input type="radio" id="female" value="女" v-model="radioBox"> <label for="female">女</label> <p>选择的项：{{ radioBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { radioBox: ‘‘ } }) </script>
下拉框
1、普通下拉框
<div id="app-1"> <select v-model="comboBox"> <option disabled value="">请选择一项</option> <option>男</option> <option>女</option> </select> <p>选择的项：{{ comboBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { comboBox: ‘‘ } }) </script>
2、动态绑定下拉框
<div id="app-1"> <select v-model="dynamicComboBox"> <option v-for="optionItem in optionItems" v-bind:value="optionItem.value"> {{ optionItem.text }} </option> </select> <p>选择的项：{{ dynamicComboBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { dynamicComboBox: ‘‘, optionItems: [ { value: ‘TanSea‘, text: ‘双子宫殿‘ }, { value: ‘Google‘, text: ‘谷歌搜索‘ }, { value: ‘Baidu‘, text: ‘百度搜索‘ } ] } }) </script>
3、多选列表
<div id="app-1"> <p><select v-model="multiComboBox" multiple> <option>双子宫殿</option> <option>谷歌搜索</option> <option>百度搜索</option> </select></p> <p>选择的项：{{ multiComboBox }}</p> </div> <script type="text/javascript"> var vm1 = new Vue({ el: ‘#app-1‘, data: { multiComboBox: [] } }) </script>