ie 11不支持的特性：
1 模板字符串
javascript - Template literals syntax is not working in IE11 - Stack Overflow
jquery - JavaScript backtick multiline string not working in Internet Explorer - Stack Overflow
2 不支持Object.assign
ie 11不支持的特性：
1 模板字符串
javascript - Template literals syntax is not working in IE11 - Stack Overflow
jquery - JavaScript backtick multiline string not working in Internet Explorer - Stack Overflow
2 不支持Object.assign
