一、键盘修饰符
在JavaScript事件中除了前面所说的事件,还有键盘事件,也经常需要监测常见的键值。在Vue中允许v-on在监听键盘事件时添加关键修饰符。记住所有的keyCode比较困难,所以Vue为最常用的键盘事件提供了别名:
enter:回车键
tab:制表键
delete:含delete和backspace键
esc:返回键
space: 空格键
up:向上键
down:向下键
left:向左键
right:向右键
注意: 键盘修饰符须添加的标签中绑定keyup事件名,之后加上键盘修饰符
例如: @keyup.修饰符=”方法” => @keyup.enter="handle"
v-on:keyup.修饰符="方法" => `v-on:keyup.enter="handle"`
二、enter修饰符
.enter是点击enter
键触发绑定方法
例子
<div id="app">
<form action="" method="post">
<div>
<input type="text" v-model="uname"/>
</div>
<div>
<input type="password" v-model="pwd" @keyup.enter="handleSubmit"/>
</div>
<div>
<input type="button" @click="handleSubmit" value="提交">
</div>
</form>
</div>
<script src="../js/vue.js"></script>
<script>
var vm = new Vue({
el: "#app",
data: {
uname:'',
pwd:''
},
methods: {
handleSubmit:function(){
console.log(this.uname,this.pwd);
}
}
})
</script>
三、delete修饰符
.delete是点击delete
键触发绑定方法
例子
<div id="app">
<form action="" method="post">
<div>
<input type="text" v-model="uname" v-on:keyup.delete="clearContent"/>
</div>
<div>
<input type="password" v-model="pwd" @keyup.enter="handleSubmit"/>
</div>
<div>
<input type="button" @click="handleSubmit" value="提交">
</div>
</form>
</div>
<script src="../js/vue.js"></script>
<script>
var vm = new Vue({
el: "#app",
data: {
uname:'',
pwd:''
},
methods: {
handleSubmit:function(){
console.log(this.uname,this.pwd);
},
clearContent:function(){
this.uname = '';
}
}
})
</script>