Vue.js的自定义指令directive

<script>
 export default { //自定义v-css指令
 directives: { css: {
 inserted (el, bind) { let styleObj = bind.value let arr = [] for (let key in styleObj) {
 arr.push(key + ':' + styleObj[key])
 }
 arr = arr.join(';')
 el.style.cssText = arr
 }
 }
 }</script>

Vue.directive('css', {
 inserted (el, binding) { let styleObj = binding.value let arr = [] for (let key in styleObj) {
 arr.push(key + ':' + styleObj[key])
 }
 arr = arr.join(';')
 el.style.cssText = arr
 }
})

<p v-css="{color: 'orange', 'font-size': '24px'}">我是p标签</p>