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满意请采纳
场景：有时候我们同时需要两个接口返回的数据才能实现进一步操作，下面介绍2种方法
方法1：利用js回调嵌套的方式
为了实现嵌套调用，另外定义一个函数，total，保证接口返回数据成功后执行打印百分比操作
实现如下：
方法2：利用es6的promise解决回调地狱问题
每个异步接口 返回一个promise对象
利用promisee.all方法保证接口数据成功返回再执行操作
1.首先，大家需要检查一下，自己IE浏览器是否启用了这个Adobe Flash Player程序。操作方法如下：咱们双击打开IE浏览器，然后点击上方窗口中的工具-管理加载项，在弹出的对话框中咱们找到“Shockwave Flash Object”选项并右键点击，选择“启用”即可。2.其次，咱们还需要禁用ActiveX 筛选。操作方法如下：还是双击打开IE浏览器，之后单击“工具”图标并选择“安全”>“ActiveX 筛选”，然后确保这个ActiveX选项处于关闭状态。3.如果还是不行的话，就有可能是咱们Adobe Flash Player版本太旧造成的问题，咱们只需要对Adobe Flash Player进行升级就可以了。注：该教程来自河东软件网解决方法：这是微软官方对ie模块及配置的介绍
https://docs.microsoft.com/zh-cn/DeployEdge/edge-ie-mode这是CSDN给的一个相关教程
https://blog.csdn.net/weixin_39636245/article/details/112708074?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_title~default-0.control&spm=1001.2101.3001.4242
