1.vue-cli2兼容ie参考网址：https://blog.csdn.net/weixin_...具体步骤：（1）(2)npminstall--savebabel-polyfill(3)import'babel-polyfill'(4)entry:["classlist-polyfill""babel-polyfill","./src/main.js"],(5)转换语句：npmibabel-preset-es2015(6)安装npmiclasslist-polyfill，并在webpack.base.conf.js,添加'classlist-polyfill'然后，npmrundev，就可以了！
