vue 动态数据和点击事件的小案例
我是分割线
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>vue指令栗子</title>
</head>
<body>
<div class="input-num" id="app">
<button @click="sub">-</button>
<span>{{ num }}</span>
<button @click="add">+</button>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
var app = new Vue({
el: '#app',
data: {
num: 0,
},
methods: {
sub: function (){
if (this.num > 0){
this.num --;
}else {
alert("最小为0")
}
},
add: function (){
if (this.num < 10){
this.num ++;
}else {
alert("最大为10")
}
},
}
});
</script>
</body>
</html>
我是分割线
前台效果:
vue指令栗子 {{ num }}