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ClassContent/历届学生/font-end-nine/项目练习/学生项目/冯文焌/8vue/2指令.html
2024-09-27 02:06:13 +08:00

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HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div class="app">
<h2 v-title="test" v-focus>{{ test | aaaa }}</h2>
</div>
</body>
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14"></script>
<script>
var more = {
data() {
return {
page: 1,
totalpage: 0
}
},
methods: {
getMore() {
console.log("getMore");
}
}
};
new Vue({
el: ".app",
data: {
test:'啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊'
},
created() {
console.log(this.page);
this.getMore()
},
mixins: [more],
methos: {
},
//指令如何使用
directives:{
title: {
bind(el,binding) {
document.title = binding.value
console.log("bind: ",el,binding);
},
inserted (el,binding) {
console.log("inserted: ",el,binding);
},
update(el,binding) {
}
}
},
filters:{
aaaa(val){
return val.substring(0, 5) + '...'
}
}
})
</script>
</html>