//注册全局指令 Vue.directive('upper-word',(el,binding)=>{ el.textContent=binding.value.toUpperCase(); });
<p>自定义全局指令</p>
<p v-upper-word='word'></p>
directives:{ 'lower-word'(el,binding){ el.textContent=binding.value.toLowerCase(); } },
<p>========自定义局部指令============</p>
<p v-lower-word='word'></p>