VUE 全局变量的几种实现方式

const colorList = [
 '#F9F900',
 '#6FB7B7',
]
const colorListLength = 20
function getRandColor () {
 var tem = Math.round(Math.random() * colorListLength)
 return colorList[tem]
}
export default
{
 colorList,
 colorListLength,
 getRandColor
}

<template>
 <ul>
  <template v-for="item in mainList">
   <div class="projectItem" :style="'box-shadow:1px 1px 10px '+ getColor()">
     <router-link :to="'project/'+item.id">
      ![](item.img)
      <span>{{item.title}}</span>
     </router-link>
   </div>
  </template>
 </ul>
</template>
<script type="text/javascript">
import global from 'components/tool/Global'
export default {
 data () {
  return {
   getColor: global.getRandColor,
   mainList: [
    {
     id: 1,
     img: require('../../assets/rankIcon.png'),
     title: '登录界面'
    },
    {
     id: 2,
     img: require('../../assets/rankIndex.png'),
     title: '主页'
    }
   ]
  }
 }
}
</script>

import global_ from './components/tool/Global'
Vue.prototype.GLOBAL = global_

<script type="text/javascript">
export default {
data () {

return {
 getColor: this.GLOBAL.getRandColor,
 mainList: [
  {
   id: 1,
   img: require('../../assets/rankIcon.png'),
   title: '登录界面'
  },
  {
   id: 2,
   img: require('../../assets/rankIndex.png'),
   title: '主页'
  }
 ]
}
}
}
</script>