二.Vue条件指令
强烈推介IDEA2020.2破解激活,IntelliJ IDEA 注册码,2020.2 IDEA 激活码
一.Vue初体验:https://blog.csdn.net/qq_43674132/article/details/104857216 二.Vue条件命令:https://blog.csdn.net/qq_43674132/article/details/104857322 三.Vue循环指令:https://blog.csdn.net/qq_43674132/article/details/104857517 四.Vue处理用户输入:https://blog.csdn.net/qq_43674132/article/details/104857651 五.Vue组件初体验:https://blog.csdn.net/qq_43674132/article/details/104857870 六.Vue实例:https://blog.csdn.net/qq_43674132/article/details/104857953 七.Vue模板语法:https://blog.csdn.net/qq_43674132/article/details/104858009 八.Vue计算属性:https://blog.csdn.net/qq_43674132/article/details/104858068 九.Vue.js侦听器:https://blog.csdn.net/qq_43674132/article/details/104860083 十.Vue.js的class绑定:https://blog.csdn.net/qq_43674132/article/details/104861826 十一.Vue style绑定:https://blog.csdn.net/qq_43674132/article/details/104877107 十二.Vue 条件渲染:https://blog.csdn.net/qq_43674132/article/details/104877177 十三.Vue 列表渲染:https://blog.csdn.net/qq_43674132/article/details/104877393 十四.Vue事件处理:https://blog.csdn.net/qq_43674132/article/details/104878173 十五.Vue表单输入绑定:https://blog.csdn.net/qq_43674132/article/details/104879776 十六.Vue中引用图片:https://blog.csdn.net/qq_43674132/article/details/107043105
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
</body>
</html>
先在body里面写个div,id为app,然后在div标签里面再写一个div,div里面写入一行字符串 再写个script标签,在标签中var app = new Vue({});中括号里面就写声明的元素、数据等 data{ flag:true } 表示显示,然后在第二个div里面用v-if指令进行判断,默认是显示的
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="app">
<!--v-if:是vue中的判断指令-->
<div v-if="flag">hello liqinggang</div>
</div>
<script>
var app = new Vue({
el:"#app",
data:{
flag:true
}
})
</script>
</body>
</html>
运行效果如下
在控制台的Console下输入app.flag=false按回车,效果如下
还可以把v-if改成v-show,v-show也是显示的意思,只不过为false的时候,是用了display:none隐藏掉了