1 关于引入express包报

import express from "express";
^^^^^^

SyntaxError: Cannot use import statement outside a module的问题。

解决方案：

在package.json中添加type：“module”选项

2  'Response' is a type and must be imported using a type-only import when 'preserveValueImports' and 'isolatedModules' are both enabled.报错

解决方案：给 { NextFunction,Request,Response } 添加 type 关键词

import  type { NextFunction,Request,Response } from "express"