<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="js/vue.js"></script>
</head
<body>
<div id="app">
<input type="text" v-model="n1">
<select v-model = "opt">
<option value="+">+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
</select>
<input type="text" v-model="n2">
<input type="button" value="=" @click="calc">
<input type="text" v-model="result">
</div>
<script>
var vm=new Vue({
el:"#app",
data:{
n1:0,
n2:0,
result:0,
opt:'+'
},
methods:{
calc(){
switch(this.opt){
case '+':
this.result=parseInt(this.n1) + parseInt(this.n2)
break;
case '-':
this.result=parseInt(this.n1) - parseInt(this.n2)
break;
case '*':
this.result=parseInt(this.n1) * parseInt(this.n2)
break;
case '/':
this.result=parseInt(this.n1) / parseInt(this.n2)
break;
}
}
}
});
</script>
</body>
</html>
