使用脚手架新建了一个vue项目，可以在IE9+浏览器运行，但是在添加了axios后，在IE下就报错了
首先是安装axios，在命令行执行：
$ npm install axios -s //执行命令，下面是输出结果
+ axios@0.18.0
added 1 package from 1 contributor and audited 32846 packages in 12.611s
found 7 vulnerabilities (1 low, 1 moderate, 4 high, 1 critical)
run `npm audit fix` to fix them, or `npm audit` for details
在用到axios的页面引入：
import axios from "axios";
然后添加使用的代码：
methods: {
getDatas (){
this.msg = "触发了"
axios.get('http://192.168.80.129:8080/v1/topic/')
.then(function(response) {
console.log(response);
});
}
}
报错图片：
接着又在methods的前面添加了：
mounted() {
this.getDatas ();
},
然后又报错了：
解决方法; 安装 babel-polyfill
$ npm install babel-polyfill --save
npm WARN rollback Rolling back node-pre-gyp@0.10.0 failed (this is probably harmless): EPERM: operation not permitted, lstat 'F:\05 poverty alleviation project\poverty\node_modules\fsevents\node_modules'
npm WARN ajv-keywords@3.2.0 requires a peer of ajv@^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}) + babel-polyfill@6.26.0
added 2 packages from 2 contributors and audited 32852 packages in 12.536s
found 7 vulnerabilities (1 low, 1 moderate, 4 high, 1 critical)
run `npm audit fix` to fix them, or `npm audit` for details
安装成功后，在main.js 引入
引入后再次运行项目,也就是执行 npm run dev ，然后在IE下查看是否请求数据成功，这里是请求数据成功了的，如下图：
